diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..6673000
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,2 @@
+# Shell scripts must use LF — CRLF breaks Alpine entrypoints ("No such file or directory").
+*.sh text eol=lf
diff --git a/.gitea/workflows/registry-build-deploy.yml b/.gitea/workflows/registry-build-deploy.yml
index 1ca249e..211f33a 100644
--- a/.gitea/workflows/registry-build-deploy.yml
+++ b/.gitea/workflows/registry-build-deploy.yml
@@ -1,30 +1,32 @@
-# Build backend/frontend images, push to Gitea Container Registry, deploy with pull-only compose.
+# Staging: build backend/frontend images, push to Gitea Container Registry, deploy on self-hosted runner.
 #
-# Repository Variables (Settings → Actions → Variables) — non-secret:
-#   REGISTRY_HOST        e.g. 178.131.50.201:3000   (no http/https)
-#   REGISTRY_OWNER       Gitea user or org that owns the packages (same as image namespace)
-#   PUBLIC_BASE_URL      URL users open in browser, e.g. http://178.131.50.201:8088  (no trailing slash)
+# Triggers: push to master/main, or manual workflow_dispatch.
+#
+# Repository Variables (Settings → Actions → Variables):
+#   REGISTRY_HOST        Docker registry host:port (no http/https). Same PC as Gitea → 127.0.0.1:3000
+#   REGISTRY_OWNER       Gitea user or org that owns the packages
+#   PUBLIC_BASE_URL      URL users sopen in browser, e.g. http://178.131.50.201:8088  (no trailing slash)
+#   DEPLOY_SECRETS_DIR   absolute path on runner, e.g. C:/dyolink/secrets
+#
+# Optional:
+#   STAGING_HTTP_PORT    host port for nginx (default 8088)
+#   CLONE_HOST           git clone host when runner = Gitea host → 127.0.0.1:3000
+#
+# Same Windows PC runs Gitea + runner + deploy:
+#   CLONE_HOST           → 127.0.0.1:3000  (git runs on Windows host)
+#   REGISTRY_HOST        → host.docker.internal:3000  (docker commands run inside Docker Desktop VM)
+#   Gitea app.ini ROOT_URL → http://host.docker.internal:3000/
+#   PUBLIC_BASE_URL      → public IP:8088 (browser URL for staging app)
+#
+# Add host.docker.internal:3000 to Docker Desktop insecure-registries.
 #
 # Repository Secrets (Settings → Actions → Secrets):
 #   REGISTRY_USERNAME    Gitea username for docker login
 #   REGISTRY_PASSWORD    Gitea access token (packages:read/write) or account password
 #
-# HTTP registry (typical self-hosted Gitea): Docker defaults to HTTPS. If login/push fails with
-#   "server gave HTTP response to HTTPS client", add REGISTRY_HOST (e.g. 192.168.1.100:3000) to the
-#   Docker daemon "insecure-registries" on the RUNNER machine, then restart Docker (Docker Desktop
-#   → Settings → Docker Engine → JSON → "insecure-registries": ["host:port"]).
+# Docker on runner: add registry hosts to insecure-registries, e.g. ["127.0.0.1:3000","178.131.50.201:3000"]
 #
-# Optional:
-#   STAGING_HTTP_PORT       host port for nginx (default 8088)
-#
-# Required for deploy job (absolute path on the runner host):
-#   DEPLOY_SECRETS_DIR      folder containing database.staging.env + backend.staging.env
-#
-# Runner: self-hosted with Docker. Default shell is powershell (Windows act_runner often has no WSL bash).
-# For a Linux runner, change defaults.run.shell to bash and restore bash syntax if needed.
-#
-# We do NOT use gitea.com/actions/checkout — many restricted networks cannot reach gitea.com.
-# Checkout is a plain git clone from the same Gitea host.
+# Runner: self-hosted with Docker + git. Default shell is powershell (Windows act_runner).
 
 name: Registry — build, push, deploy
 
@@ -38,189 +40,149 @@ defaults:
     shell: powershell
 
 jobs:
-  temp-success:
-    runs-on: self-hosted
+  build-and-push:
+    runs-on: windows
+    outputs:
+      image_tag: ${{ steps.meta.outputs.image_tag }}
     steps:
-      - name: Temporary placeholder (always success)
+      - name: Checkout (clone from this Gitea — no gitea.com)
         run: |
           $ErrorActionPreference = 'Stop'
-          Write-Host "Temporary workflow is active."
-          Write-Host "Trigger: ${{ github.event_name }}"
-          Write-Host "Branch:  ${{ github.ref_name }}"
-          Write-Host "Commit:  ${{ github.sha }}"
-          Write-Host "Production build/push/deploy steps are intentionally commented."
-          exit 0
+          $cloneHost = '${{ vars.CLONE_HOST }}'.Trim()
+          if ([string]::IsNullOrWhiteSpace($cloneHost)) {
+            $Server = "${{ github.server_url }}".TrimEnd('/')
+          } elseif ($cloneHost -match '^https?://') {
+            $Server = $cloneHost.TrimEnd('/')
+          } else {
+            $Server = 'http://' + $cloneHost
+          }
+          $Repo = "${{ github.repository }}"
+          $Branch = "${{ github.ref_name }}"
+          $Token = "${{ github.token }}"
+          $Actor = "${{ github.actor }}"
+          $hp = $Server -replace '^https?://', ''
+          if ($Server.StartsWith('https')) {
+            $cloneUrl = 'https://' + $Actor + ':' + $Token + '@' + $hp + '/' + $Repo + '.git'
+          } else {
+            $cloneUrl = 'http://' + $Actor + ':' + $Token + '@' + $hp + '/' + $Repo + '.git'
+          }
+          $env:GIT_TERMINAL_PROMPT = '0'
+          git clone --depth 1 --branch $Branch $cloneUrl .
 
-  # ---------------------------------------------------------------------------
-  # Production pipeline is temporarily disabled.
-  # Uncomment these jobs after split-DNS / registry reachability is fixed.
-  # ---------------------------------------------------------------------------
-  #
-  # build-and-push:
-  #   runs-on: self-hosted
-  #   outputs:
-  #     image_tag: ${{ steps.meta.outputs.image_tag }}
-  #   steps:
-  #     - name: Checkout (clone from this Gitea — no gitea.com)
-  #     - name: Image tag and registry prefix
-  #     - name: Log in to container registry
-  #     - name: Build and push backend
-  #     - name: Build and push frontend
-  #
-  # deploy:
-  #   needs: build-and-push
-  #   runs-on: self-hosted
-  #   steps:
-  #     - name: Checkout (shallow clone from this Gitea — no gitea.com)
-  #     - name: Write deploy.registry.env and validate secrets path
-  #     - name: Log in to container registry (for pull)
-  #     - name: Pull and start stack
+      - name: Image tag and registry prefix
+        id: meta
+        run: |
+          $ErrorActionPreference = 'Stop'
+          $short = (git rev-parse --short HEAD).Trim()
+          $utf8 = New-Object System.Text.UTF8Encoding $false
+          [System.IO.File]::AppendAllText($env:GITHUB_OUTPUT, "image_tag=$short`n", $utf8)
+          $prefix = "${{ vars.REGISTRY_HOST }}/${{ vars.REGISTRY_OWNER }}"
+          [System.IO.File]::AppendAllText($env:GITHUB_ENV, "REGISTRY_PREFIX=$prefix`n", $utf8)
 
+      - name: Log in to container registry
+        run: |
+          $ErrorActionPreference = 'Stop'
+          $pass = @'
+          ${{ secrets.REGISTRY_PASSWORD }}
+          '@
+          $pass.Trim() | docker login "${{ vars.REGISTRY_HOST }}" -u "${{ secrets.REGISTRY_USERNAME }}" --password-stdin
 
+      - name: Build and push backend
+        run: |
+          $ErrorActionPreference = 'Stop'
+          $tag = "${{ steps.meta.outputs.image_tag }}"
+          docker build `
+            -t "$env:REGISTRY_PREFIX/dyolink-backend:$tag" `
+            -t "$env:REGISTRY_PREFIX/dyolink-backend:latest" `
+            ./backend
+          docker push "$env:REGISTRY_PREFIX/dyolink-backend:$tag"
+          docker push "$env:REGISTRY_PREFIX/dyolink-backend:latest"
 
-  ####SAMPLE
-  # name: Registry — build, push, deploy
+      - name: Build and push frontend
+        env:
+          PUBLIC_BASE_URL: ${{ vars.PUBLIC_BASE_URL }}
+        run: |
+          $ErrorActionPreference = 'Stop'
+          $tag = "${{ steps.meta.outputs.image_tag }}"
+          $base = $env:PUBLIC_BASE_URL
+          docker build `
+            --build-arg "NEXT_PUBLIC_API_URL=$base/api" `
+            --build-arg "NEXT_PUBLIC_APP_URL=$base" `
+            --build-arg "NEXT_PUBLIC_APP_NAME=Dyolink" `
+            -t "$env:REGISTRY_PREFIX/dyolink-frontend:$tag" `
+            -t "$env:REGISTRY_PREFIX/dyolink-frontend:latest" `
+            ./frontend
+          docker push "$env:REGISTRY_PREFIX/dyolink-frontend:$tag"
+          docker push "$env:REGISTRY_PREFIX/dyolink-frontend:latest"
 
-  # on:
-  #   push:
-  #     branches: [main, master]
-  #   workflow_dispatch:
+  deploy:
+    needs: build-and-push
+    runs-on: windows
+    steps:
+      - name: Checkout (shallow clone from this Gitea — no gitea.com)
+        run: |
+          $ErrorActionPreference = 'Stop'
+          $cloneHost = '${{ vars.CLONE_HOST }}'.Trim()
+          if ([string]::IsNullOrWhiteSpace($cloneHost)) {
+            $Server = "${{ github.server_url }}".TrimEnd('/')
+          } elseif ($cloneHost -match '^https?://') {
+            $Server = $cloneHost.TrimEnd('/')
+          } else {
+            $Server = 'http://' + $cloneHost
+          }
+          $Repo = "${{ github.repository }}"
+          $Branch = "${{ github.ref_name }}"
+          $Token = "${{ github.token }}"
+          $Actor = "${{ github.actor }}"
+          $hp = $Server -replace '^https?://', ''
+          if ($Server.StartsWith('https')) {
+            $cloneUrl = 'https://' + $Actor + ':' + $Token + '@' + $hp + '/' + $Repo + '.git'
+          } else {
+            $cloneUrl = 'http://' + $Actor + ':' + $Token + '@' + $hp + '/' + $Repo + '.git'
+          }
+          $env:GIT_TERMINAL_PROMPT = '0'
+          git clone --depth 1 --branch $Branch $cloneUrl .
 
-  # defaults:
-  #   run:
-  #     shell: powershell
+      - name: Write deploy.registry.env and validate secrets path
+        run: |
+          $ErrorActionPreference = 'Stop'
+          $SD = '${{ vars.DEPLOY_SECRETS_DIR }}'.Trim()
+          if ([string]::IsNullOrWhiteSpace($SD)) {
+            Write-Host "Set repository variable DEPLOY_SECRETS_DIR to the absolute path on this runner"
+            Write-Host "where database.staging.env and backend.staging.env live (not in git)."
+            exit 1
+          }
+          if (-not (Test-Path (Join-Path $SD "database.staging.env"))) {
+            Write-Host "Missing $(Join-Path $SD 'database.staging.env')"
+            exit 1
+          }
+          if (-not (Test-Path (Join-Path $SD "backend.staging.env"))) {
+            Write-Host "Missing $(Join-Path $SD 'backend.staging.env')"
+            exit 1
+          }
+          $stagingPort = '${{ vars.STAGING_HTTP_PORT }}'.Trim()
+          if ([string]::IsNullOrWhiteSpace($stagingPort)) { $stagingPort = '8088' }
+          $imageTag = "${{ needs.build-and-push.outputs.image_tag }}"
+          $lines = @(
+            "REGISTRY_PREFIX=${{ vars.REGISTRY_HOST }}/${{ vars.REGISTRY_OWNER }}",
+            "IMAGE_TAG=$imageTag",
+            "STAGING_HTTP_PORT=$stagingPort",
+            "DEPLOY_SECRETS_DIR=$SD"
+          )
+          Set-Location infrastructure
+          $lines | Set-Content -Path deploy.registry.env -Encoding utf8
 
-  # jobs:
-  #   build-and-push:
-  #     runs-on: self-hosted
-  #     outputs:
-  #       image_tag: ${{ steps.meta.outputs.image_tag }}
-  #     steps:
-  #       - name: Checkout (clone from this Gitea — no gitea.com)
-  #         run: |
-  #           $ErrorActionPreference = 'Stop'
-  #           $Server = "${{ github.server_url }}".TrimEnd('/')
-  #           $Repo = "${{ github.repository }}"
-  #           $Branch = "${{ github.ref_name }}"
-  #           $Token = "${{ github.token }}"
-  #           $Actor = "${{ github.actor }}"
-  #           $hp = $Server -replace '^https?://', ''
-  #           if ($Server.StartsWith('https')) {
-  #             $cloneUrl = 'https://' + $Actor + ':' + $Token + '@' + $hp + '/' + $Repo + '.git'
-  #           } else {
-  #             $cloneUrl = 'http://' + $Actor + ':' + $Token + '@' + $hp + '/' + $Repo + '.git'
-  #           }
-  #           $env:GIT_TERMINAL_PROMPT = '0'
-  #           git clone --depth 1 --branch $Branch $cloneUrl .
-
-  #       - name: Image tag and registry prefix
-  #         id: meta
-  #         run: |
-  #           $ErrorActionPreference = 'Stop'
-  #           $short = (git rev-parse --short HEAD).Trim()
-  #           $utf8 = New-Object System.Text.UTF8Encoding $false
-  #           [System.IO.File]::AppendAllText($env:GITHUB_OUTPUT, "image_tag=$short`n", $utf8)
-  #           $prefix = "${{ vars.REGISTRY_HOST }}/${{ vars.REGISTRY_OWNER }}"
-  #           [System.IO.File]::AppendAllText($env:GITHUB_ENV, "REGISTRY_PREFIX=$prefix`n", $utf8)
-
-  #       - name: Log in to container registry
-  #         run: |
-  #           $ErrorActionPreference = 'Stop'
-  #           $pass = @'
-  #           ${{ secrets.REGISTRY_PASSWORD }}
-  #           '@
-  #           $pass.Trim() | docker login "${{ vars.REGISTRY_HOST }}" -u "${{ secrets.REGISTRY_USERNAME }}" --password-stdin
-
-  #       - name: Build and push backend
-  #         run: |
-  #           $ErrorActionPreference = 'Stop'
-  #           $tag = "${{ steps.meta.outputs.image_tag }}"
-  #           docker build `
-  #             -t "$env:REGISTRY_PREFIX/dyolink-backend:$tag" `
-  #             -t "$env:REGISTRY_PREFIX/dyolink-backend:latest" `
-  #             ./backend
-  #           docker push "$env:REGISTRY_PREFIX/dyolink-backend:$tag"
-  #           docker push "$env:REGISTRY_PREFIX/dyolink-backend:latest"
-
-  #       - name: Build and push frontend
-  #         env:
-  #           PUBLIC_BASE_URL: ${{ vars.PUBLIC_BASE_URL }}
-  #         run: |
-  #           $ErrorActionPreference = 'Stop'
-  #           $tag = "${{ steps.meta.outputs.image_tag }}"
-  #           $base = $env:PUBLIC_BASE_URL
-  #           docker build `
-  #             --build-arg "NEXT_PUBLIC_API_URL=$base/api" `
-  #             --build-arg "NEXT_PUBLIC_APP_URL=$base" `
-  #             --build-arg "NEXT_PUBLIC_APP_NAME=Dyolink" `
-  #             -t "$env:REGISTRY_PREFIX/dyolink-frontend:$tag" `
-  #             -t "$env:REGISTRY_PREFIX/dyolink-frontend:latest" `
-  #             ./frontend
-  #           docker push "$env:REGISTRY_PREFIX/dyolink-frontend:$tag"
-  #           docker push "$env:REGISTRY_PREFIX/dyolink-frontend:latest"
-
-  #   deploy:
-  #     needs: build-and-push
-  #     runs-on: self-hosted
-  #     steps:
-  #       - name: Checkout (shallow clone from this Gitea — no gitea.com)
-  #         run: |
-  #           $ErrorActionPreference = 'Stop'
-  #           $Server = "${{ github.server_url }}".TrimEnd('/')
-  #           $Repo = "${{ github.repository }}"
-  #           $Branch = "${{ github.ref_name }}"
-  #           $Token = "${{ github.token }}"
-  #           $Actor = "${{ github.actor }}"
-  #           $hp = $Server -replace '^https?://', ''
-  #           if ($Server.StartsWith('https')) {
-  #             $cloneUrl = 'https://' + $Actor + ':' + $Token + '@' + $hp + '/' + $Repo + '.git'
-  #           } else {
-  #             $cloneUrl = 'http://' + $Actor + ':' + $Token + '@' + $hp + '/' + $Repo + '.git'
-  #           }
-  #           $env:GIT_TERMINAL_PROMPT = '0'
-  #           git clone --depth 1 --branch $Branch $cloneUrl .
-
-  #       - name: Write deploy.registry.env and validate secrets path
-  #         run: |
-  #           $ErrorActionPreference = 'Stop'
-  #           $SD = '${{ vars.DEPLOY_SECRETS_DIR }}'.Trim()
-  #           if ([string]::IsNullOrWhiteSpace($SD)) {
-  #             Write-Host "Set repository variable DEPLOY_SECRETS_DIR to the absolute path on this runner"
-  #             Write-Host "where database.staging.env and backend.staging.env live (not in git)."
-  #             exit 1
-  #           }
-  #           if (-not (Test-Path (Join-Path $SD "database.staging.env"))) {
-  #             Write-Host "Missing $(Join-Path $SD 'database.staging.env')"
-  #             exit 1
-  #           }
-  #           if (-not (Test-Path (Join-Path $SD "backend.staging.env"))) {
-  #             Write-Host "Missing $(Join-Path $SD 'backend.staging.env')"
-  #             exit 1
-  #           }
-  #           $stagingPort = '${{ vars.STAGING_HTTP_PORT }}'.Trim()
-  #           if ([string]::IsNullOrWhiteSpace($stagingPort)) { $stagingPort = '8088' }
-  #           $imageTag = "${{ needs.build-and-push.outputs.image_tag }}"
-  #           $lines = @(
-  #             "REGISTRY_PREFIX=${{ vars.REGISTRY_HOST }}/${{ vars.REGISTRY_OWNER }}",
-  #             "IMAGE_TAG=$imageTag",
-  #             "STAGING_HTTP_PORT=$stagingPort",
-  #             "DEPLOY_SECRETS_DIR=$SD"
-  #           )
-  #           Set-Location infrastructure
-  #           $lines | Set-Content -Path deploy.registry.env -Encoding utf8
-
-  #       - name: Log in to container registry (for pull)
-  #         run: |
-  #           $ErrorActionPreference = 'Stop'
-  #           $pass = @'
-  #           ${{ secrets.REGISTRY_PASSWORD }}
-  #           '@
-  #           $pass.Trim() | docker login "${{ vars.REGISTRY_HOST }}" -u "${{ secrets.REGISTRY_USERNAME }}" --password-stdin
-
-  #       - name: Pull and start stack
-  #         run: |
-  #           $ErrorActionPreference = 'Stop'
-  #           Set-Location infrastructure
-  #           docker compose -f docker-compose.registry.yml --env-file deploy.registry.env pull backend frontend
-  #           docker compose -f docker-compose.registry.yml --env-file deploy.registry.env up -d
+      - name: Log in to container registry (for pull)
+        run: |
+          $ErrorActionPreference = 'Stop'
+          $pass = @'
+          ${{ secrets.REGISTRY_PASSWORD }}
+          '@
+          $pass.Trim() | docker login "${{ vars.REGISTRY_HOST }}" -u "${{ secrets.REGISTRY_USERNAME }}" --password-stdin
 
+      - name: Pull and start stack
+        run: |
+          $ErrorActionPreference = 'Stop'
+          Set-Location infrastructure
+          docker compose -f docker-compose.registry.yml --env-file deploy.registry.env pull backend frontend
+          docker compose -f docker-compose.registry.yml --env-file deploy.registry.env up -d
diff --git a/AGENTS.md b/AGENTS.md
index ee313a0..8236b0f 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -10,7 +10,7 @@ Dental clinic ↔ lab platform (monorepo):
 |------|--------|
 | `backend/` | NestJS, Prisma, PostgreSQL |
 | `frontend/` | Next.js 16, React 19, next-intl, Tailwind |
-| `infrastructure/` | Docker, nginx, deploy scripts |
+| `infrastructure/` | Docker, nginx, deploy scripts — prod: `DEPLOY.md`, staging: `STAGING-DEPLOY.md` |
 
 **Organization types:** `CLINIC` (patients, appointments, treatment) and `LAB` (cases, tasks). Many features are org-type-specific. Permissions use `TAB_*_READ` / `TAB_*_EDIT` codes — see `backend/src/common/permissions.ts`.
 
diff --git a/README.md b/README.md
index a412280..2302c2f 100644
--- a/README.md
+++ b/README.md
@@ -42,103 +42,13 @@ SSL is issued automatically via **Certbot** (`scripts/init-letsencrypt.sh`). Ngi
 
 ---
 
-## Deploy on your own server (Docker + Gitea)
+## Staging deploy (Gitea Actions + Windows)
 
-High level: **build container images → push to a registry → server pulls images and runs Compose**. Optionally **Gitea Actions** automates that on every merge to `main` / `master`.
+**Full guide:** [`infrastructure/STAGING-DEPLOY.md`](infrastructure/STAGING-DEPLOY.md)
 
-### 1. One-time server preparation
+Merge or push to **`master`** → Gitea Actions builds images → deploys to `http://<host>:8088`.
 
-1. Install **Docker** and **Docker Compose** on the server.
-2. Run **Gitea** with the **container registry** enabled (same host/port you use for `docker login`, e.g. `178.131.50.201:3000`).
-3. Copy the repo (or deploy only `infrastructure/` + secrets). You need at least:
-
-   - `infrastructure/docker-compose.registry.yml`
-   - `infrastructure/nginx/` configs referenced by that compose file
-   - `infrastructure/database/init.sql` if used by your Postgres service
-
-4. **Secrets on the server** (never commit real values):
-
-   - Copy `infrastructure/database.staging.env.example` → **`database.staging.env`** (Postgres user/password/db).
-   - Copy `infrastructure/backend.staging.env.example` → **`backend.staging.env`** (e.g. `DATABASE_URL`, JWT, pointing at the compose Postgres service name).
-   - Put both files in one directory on the server, e.g. `/opt/dyolink/secrets/`.
-
-5. **Registry login from the server** (same credentials you use for `docker push`):
-
-   ```bash
-   docker login <registry-host>:<port> -u <user>
-   ```
-
-   For HTTP registries, Docker may require **`insecure-registries`** on the daemon.
-
-### 2. Manual deploy (build images elsewhere, run on server)
-
-On your **dev machine** (after successful local builds):
-
-```powershell
-$REG = "<registry-host>:<port>"
-$OWN = "<registry-owner>"
-$TAG = "manual"
-
-docker build -t "${REG}/${OWN}/dyolink-backend:${TAG}" -t "${REG}/${OWN}/dyolink-backend:latest" ./backend
-
-docker build `
-  --build-arg NEXT_PUBLIC_API_URL="http://<your-public-ip>:<nginx-port>/api" `
-  --build-arg NEXT_PUBLIC_APP_URL="http://<your-public-ip>:<nginx-port>" `
-  --build-arg NEXT_PUBLIC_APP_NAME="Dyolink" `
-  -t "${REG}/${OWN}/dyolink-frontend:${TAG}" `
-  -t "${REG}/${OWN}/dyolink-frontend:latest" `
-  ./frontend
-
-docker push "${REG}/${OWN}/dyolink-backend:${TAG}"
-docker push "${REG}/${OWN}/dyolink-backend:latest"
-docker push "${REG}/${OWN}/dyolink-frontend:${TAG}"
-docker push "${REG}/${OWN}/dyolink-frontend:latest"
-```
-
-On the **server**, from `infrastructure/`:
-
-1. Create **`deploy.registry.env`** (see `infrastructure/deploy.registry.env.example`):
-
-   - `REGISTRY_PREFIX=<host>:<port>/<owner>` (no `http://`, no trailing slash)
-   - `IMAGE_TAG=latest` or the tag you pushed
-   - `STAGING_HTTP_PORT=<host port>` (e.g. `8088` — browser uses `http://<ip>:8088`)
-
-2. Set **`DEPLOY_SECRETS_DIR`** to the absolute path of the folder containing `database.staging.env` and `backend.staging.env` (you can export it in the shell or add it to `deploy.registry.env` if your Compose setup expects it).
-
-3. Pull and start:
-
-   ```bash
-   docker compose -f docker-compose.registry.yml --env-file deploy.registry.env pull backend frontend
-   docker compose -f docker-compose.registry.yml --env-file deploy.registry.env up -d
-   ```
-
-The backend container runs **`prisma migrate deploy`** on startup (via entrypoint) when `NODE_ENV=production`, so schema updates apply after you deploy a new image that includes new migrations.
-
-### 3. Automatic deploy (Gitea Actions)
-
-Workflow file: **`.gitea/workflows/registry-build-deploy.yml`**.
-
-**Requirements:**
-
-- **Gitea Actions** enabled for the repository.
-- A **self-hosted runner** (with Docker) registered to Gitea — the workflow uses `runs-on: self-hosted`.
-- **Windows runners:** the workflow uses **PowerShell** (not Bash). Gitea’s runner was failing with `execvpe(/bin/bash) failed` when Bash was routed through WSL without a real `/bin/bash`. If your runner is **Linux**, switch `.gitea/workflows/registry-build-deploy.yml` to `defaults.run.shell: bash` and use Bash syntax instead.
-- **Repository → Actions → Variables** (examples):
-
-  - `REGISTRY_HOST` — e.g. `178.131.50.201:3000`
-  - `REGISTRY_OWNER` — image namespace (same as Docker image path after the host), e.g. `admin`
-  - `PUBLIC_BASE_URL` — URL users open in the browser, e.g. `http://178.131.50.201:8088` (no trailing slash)
-  - `DEPLOY_SECRETS_DIR` — **absolute path on the runner machine** to the folder containing `database.staging.env` and `backend.staging.env`
-  - Optional: `STAGING_HTTP_PORT` (defaults to `8088`)
-
-- **Repository → Actions → Secrets:**
-
-  - `REGISTRY_USERNAME`
-  - `REGISTRY_PASSWORD` — access token with package read/write (or equivalent)
-
-**Trigger:** push to **`main`** or **`master`**, or run the workflow manually (**workflow_dispatch**).
-
-The pipeline clones from your Gitea instance, builds and pushes backend/frontend images, then on the runner runs **`docker compose pull`** and **`up -d`** using `infrastructure/docker-compose.registry.yml`.
+Workflow: [`.gitea/workflows/registry-build-deploy.yml`](.gitea/workflows/registry-build-deploy.yml)
 
 ---
 
@@ -148,5 +58,6 @@ The pipeline clones from your Gitea instance, builds and pushes backend/frontend
 |------|------|
 | `backend/Dockerfile` | API image |
 | `frontend/Dockerfile` | Web image |
+| `infrastructure/STAGING-DEPLOY.md` | Staging setup, CI variables, testing |
 | `infrastructure/docker-compose.registry.yml` | Pull-only staging stack (registry images + nginx + postgres) |
 | `infrastructure/deploy.registry.env.example` | Template for `deploy.registry.env` |
diff --git a/backend/Dockerfile b/backend/Dockerfile
index c7f3ec0..f381da1 100644
--- a/backend/Dockerfile
+++ b/backend/Dockerfile
@@ -47,7 +47,8 @@ COPY --from=builder /app/dist ./dist
 COPY --from=builder /app/node_modules ./node_modules
 
 COPY docker-entrypoint.sh /usr/local/bin/docker-entrypoint.sh
-RUN chmod +x /usr/local/bin/docker-entrypoint.sh
+# Windows git/build context may use CRLF; strip before chmod (fixes dumb-init "No such file or directory").
+RUN sed -i 's/\r$//' /usr/local/bin/docker-entrypoint.sh && chmod +x /usr/local/bin/docker-entrypoint.sh
 
 RUN mkdir -p /app/logs && \
     chown -R dyolink:nodejs /app
diff --git a/backend/prisma/migrations/20260714194721/migration.sql b/backend/prisma/migrations/20260714194721/migration.sql
new file mode 100644
index 0000000..17e0f5f
--- /dev/null
+++ b/backend/prisma/migrations/20260714194721/migration.sql
@@ -0,0 +1,2 @@
+-- DropIndex
+DROP INDEX "lab_cases_dueDate_idx";
diff --git a/frontend/Dockerfile b/frontend/Dockerfile
index 378b2a3..62f4fb9 100644
--- a/frontend/Dockerfile
+++ b/frontend/Dockerfile
@@ -41,19 +41,19 @@ ENV NODE_ENV=production
 ENV PORT=3000
 ENV HOSTNAME=0.0.0.0
 
-COPY --from=builder /app/public ./public
 COPY --from=builder --chown=dyolink:nodejs /app/.next/standalone ./
 COPY --from=builder --chown=dyolink:nodejs /app/.next/static ./.next/static
 
 COPY docker-entrypoint.sh /usr/local/bin/docker-entrypoint.sh
-RUN chmod +x /usr/local/bin/docker-entrypoint.sh
+# Windows git/build context may use CRLF; strip before chmod (fixes dumb-init "No such file or directory").
+RUN sed -i 's/\r$//' /usr/local/bin/docker-entrypoint.sh && chmod +x /usr/local/bin/docker-entrypoint.sh
 
 USER dyolink
 
 EXPOSE 3000
 
 HEALTHCHECK --interval=30s --timeout=5s --start-period=40s --retries=3 \
-  CMD node -e "require('http').get('http://127.0.0.1:3000/', (r) => {if(r.statusCode!==200)process.exit(1)})"
+  CMD node -e "require('http').get('http://127.0.0.1:3000/', (r) => { process.exit(r.statusCode >= 200 && r.statusCode < 400 ? 0 : 1); }).on('error', () => process.exit(1))"
 
 ENTRYPOINT ["dumb-init", "--", "docker-entrypoint.sh"]
 
diff --git a/frontend/package-lock.json b/frontend/package-lock.json
index 31dfa4d..3428e26 100644
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -81,7 +81,6 @@
       "integrity": "sha512-CGOfOJqWjg2qW/Mb6zNsDm+u5vFQ8DxXfbM09z69p5Z6+mE1ikP2jUXw+j42Pf1XTYED2Rni5f95npYeuwMDQA==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@babel/code-frame": "^7.29.0",
         "@babel/generator": "^7.29.0",
@@ -2300,7 +2299,6 @@
       "integrity": "sha512-ilcTH/UniCkMdtexkoCN0bI7pMcJDvmQFPvuPvmEaYA/NSfFTAgdUSLAoVjaRJm7+6PvcM+q1zYOwS4wTYMF9w==",
       "devOptional": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "csstype": "^3.2.2"
       }
@@ -2373,7 +2371,6 @@
       "integrity": "sha512-XZzOmihLIr8AD1b9hL9ccNMzEMWt/dE2u7NyTY9jJG6YNiNthaD5XtUHVF2uCXZ15ng+z2hT3MVuxnUYhq6k1g==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@typescript-eslint/scope-manager": "8.57.0",
         "@typescript-eslint/types": "8.57.0",
@@ -2899,7 +2896,6 @@
       "integrity": "sha512-UVJyE9MttOsBQIDKw1skb9nAwQuR5wuGD3+82K6JgJlm/Y+KI92oNsMNGZCYdDsVtRHSak0pcV5Dno5+4jh9sw==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "bin": {
         "acorn": "bin/acorn"
       },
@@ -3203,7 +3199,6 @@
       "integrity": "sha512-Ixm8tFfoKKIPYdCCKYTsqv+Fd4IJ0DQqMyEimo+pxUOMUR9cVPlwTrFt9Avu+3cb6Zp3mAzl+t1MrG2fxxKsxw==",
       "devOptional": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@babel/types": "^7.26.0"
       }
@@ -3281,7 +3276,6 @@
         }
       ],
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "baseline-browser-mapping": "^2.9.0",
         "caniuse-lite": "^1.0.30001759",
@@ -4083,7 +4077,6 @@
       "integrity": "sha512-XoMjdBOwe/esVgEvLmNsD3IRHkm7fbKIUGvrleloJXUZgDHig2IPWNniv+GwjyJXzuNqVjlr5+4yVUZjycJwfQ==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@eslint-community/eslint-utils": "^4.8.0",
         "@eslint-community/regexpp": "^4.12.1",
@@ -4269,7 +4262,6 @@
       "integrity": "sha512-whOE1HFo/qJDyX4SnXzP4N6zOWn79WhnCUY/iDR0mPfQZO8wcYE4JClzI2oZrhBnnMUCBCHZhO6VQyoBU95mZA==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@rtsao/scc": "^1.1.0",
         "array-includes": "^3.1.9",
@@ -6318,6 +6310,17 @@
         }
       }
     },
+    "node_modules/next-intl/node_modules/@swc/helpers": {
+      "version": "0.5.23",
+      "resolved": "https://registry.npmjs.org/@swc/helpers/-/helpers-0.5.23.tgz",
+      "integrity": "sha512-5lSsMOTXURePglDfvuAQUqkGek9Hg2kksOYay2m0+XR++b2NWYL/4sWyuvVBIs8oKnJaxkdi9whaL/sqN13afw==",
+      "license": "Apache-2.0",
+      "optional": true,
+      "peer": true,
+      "dependencies": {
+        "tslib": "^2.8.0"
+      }
+    },
     "node_modules/next/node_modules/postcss": {
       "version": "8.4.31",
       "resolved": "https://registry.npmmirror.com/postcss/-/postcss-8.4.31.tgz",
@@ -6774,7 +6777,6 @@
       "resolved": "https://registry.npmmirror.com/react/-/react-19.2.3.tgz",
       "integrity": "sha512-Ku/hhYbVjOQnXDZFv2+RibmLFGwFdeeKHFcOTlrt7xplBnya5OGn/hIRDsqDiSUcfORsDC7MPxwork8jBwsIWA==",
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=0.10.0"
       }
@@ -6784,7 +6786,6 @@
       "resolved": "https://registry.npmmirror.com/react-dom/-/react-dom-19.2.3.tgz",
       "integrity": "sha512-yELu4WmLPw5Mr/lmeEpox5rw3RETacE++JgHqQzd2dg+YbJuat3jH4ingc+WPZhxaoFzdv9y33G+F7Nl5O0GBg==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "scheduler": "^0.27.0"
       },
@@ -6797,7 +6798,6 @@
       "resolved": "https://registry.npmmirror.com/react-hook-form/-/react-hook-form-7.71.2.tgz",
       "integrity": "sha512-1CHvcDYzuRUNOflt4MOq3ZM46AronNJtQ1S7tnX6YN4y72qhgiUItpacZUAQ0TyWYci3yz1X+rXaSxiuEm86PA==",
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=18.0.0"
       },
@@ -6813,8 +6813,7 @@
       "version": "16.13.1",
       "resolved": "https://registry.npmmirror.com/react-is/-/react-is-16.13.1.tgz",
       "integrity": "sha512-24e6ynE2H+OKt4kqsOvNd8kBpV65zoxbA4BVsEOB3ARVWQki/DHzaUoC5KuON/BiccDaCCTZBuOcfZs70kR8bQ==",
-      "license": "MIT",
-      "peer": true
+      "license": "MIT"
     },
     "node_modules/react-qr-code": {
       "version": "2.2.0",
@@ -6834,7 +6833,6 @@
       "resolved": "https://registry.npmmirror.com/react-redux/-/react-redux-9.3.0.tgz",
       "integrity": "sha512-KQopgqFo/p/fgmAs5qz6p5RWaNAzq40WAu7fJIXnQpYxFPbJYtsJPWvGeF2rOBaY/kEuV77AVsX8TsQzKm+A/g==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@types/use-sync-external-store": "^0.0.6",
         "use-sync-external-store": "^1.4.0"
@@ -6887,8 +6885,7 @@
       "version": "5.0.1",
       "resolved": "https://registry.npmmirror.com/redux/-/redux-5.0.1.tgz",
       "integrity": "sha512-M9/ELqF6fy8FwmkpnF0S3YKOqMyoWJ4+CS5Efg2ct3oY9daQvd/Pc71FpGZsVsbl3Cpb+IIcjBDUnnyBdQbq4w==",
-      "license": "MIT",
-      "peer": true
+      "license": "MIT"
     },
     "node_modules/redux-thunk": {
       "version": "3.1.0",
@@ -7660,7 +7657,6 @@
       "integrity": "sha512-5gTmgEY/sqK6gFXLIsQNH19lWb4ebPDLA4SdLP7dsWkIXHWlG66oPuVvXSGFPppYZz8ZDZq0dYYrbHfBCVUb1Q==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=12"
       },
@@ -7823,7 +7819,6 @@
       "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
       "dev": true,
       "license": "Apache-2.0",
-      "peer": true,
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
@@ -8189,7 +8184,6 @@
       "resolved": "https://registry.npmmirror.com/zod/-/zod-4.3.6.tgz",
       "integrity": "sha512-rftlrkhHZOcjDwkGlnUtZZkvaPHCsDATp4pGpuOOMDaTdDDXF91wuVDJoWoPsKX/3YPQ5fHuF3STjcYyKr+Qhg==",
       "license": "MIT",
-      "peer": true,
       "funding": {
         "url": "https://github.com/sponsors/colinhacks"
       }
diff --git a/infrastructure/STAGING-DEPLOY.md b/infrastructure/STAGING-DEPLOY.md
new file mode 100644
index 0000000..3b51cee
--- /dev/null
+++ b/infrastructure/STAGING-DEPLOY.md
@@ -0,0 +1,316 @@
+# Dyolink — Staging deploy (Gitea + Windows)
+
+Automatic staging on a **self-hosted Gitea** machine: merge (or push) to **`master`** → build Docker images → push to Gitea Container Registry → deploy on the same host.
+
+**Example:** Gitea at `http://178.131.50.201:3000`, staging app at `http://178.131.50.201:8088`.
+
+Production (`nudentic.ir` on Linux, tag-based releases) is documented in [`DEPLOY.md`](DEPLOY.md).
+
+---
+
+## Architecture
+
+```
+Push / merge to master
+        ↓
+Gitea Actions (self-hosted act_runner on Windows)
+        ↓
+Build backend + frontend → push to Gitea registry
+        ↓
+docker compose pull + up -d (docker-compose.registry.yml)
+        ↓
+http://<host-ip>:8088  →  nginx → frontend / backend → postgres
+```
+
+| Service  | Image source                                      |
+|----------|---------------------------------------------------|
+| postgres | `postgres:15-alpine` (pulled from Docker Hub)     |
+| backend  | `<REGISTRY_HOST>/<owner>/dyolink-backend:<sha>`   |
+| frontend | `<REGISTRY_HOST>/<owner>/dyolink-frontend:<sha>`  |
+| nginx    | `nginx:alpine`                                    |
+
+Frontend public URLs are **baked in at build time** via `PUBLIC_BASE_URL`.
+
+---
+
+## Triggers
+
+| Event | Staging deploy? |
+|-------|-----------------|
+| Push to `master` | Yes |
+| PR merged into `master` | Yes (merge = push to `master`) |
+| Push to other branches only | No |
+| Git tag (e.g. `v1.0.0`) | No — reserved for production later |
+| Manual | Gitea → Actions → **Registry — build, push, deploy** → Run workflow |
+
+Workflow file: [`.gitea/workflows/registry-build-deploy.yml`](../.gitea/workflows/registry-build-deploy.yml)
+
+---
+
+## One-time setup (Windows host)
+
+### 1. Docker Desktop
+
+- Install and keep **Docker Desktop running** during builds/deploys.
+- **Settings → Docker Engine** — allow HTTP registry:
+
+```json
+{
+  "insecure-registries": [
+    "host.docker.internal:3000",
+    "127.0.0.1:3000",
+    "178.131.50.201:3000",
+    "192.168.1.100:3000"
+  ]
+}
+```
+
+Apply & restart Docker Desktop.
+
+**Why `host.docker.internal`?** Docker Desktop runs in a Linux VM. `docker login` runs from that VM — `127.0.0.1:3000` is the VM, not Gitea on Windows.
+
+### 2b. Gitea `app.ini` — match registry URL
+
+Edit `C:\gitea\custom\conf\app.ini`:
+
+```ini
+[server]
+ROOT_URL = http://host.docker.internal:3000/
+```
+
+Restart Gitea. Gitea uses `ROOT_URL` for Docker registry auth redirects.
+
+### 2c. Gitea Actions runner
+
+Download [act_runner](https://gitea.com/gitea/act_runner/releases) → e.g. `C:\gitea-runner\act_runner.exe`.
+
+**Important — runner level:** the registration token decides which repos can use the runner.
+
+| Token from | Runner level | Works for `admin/dyolink`? |
+|------------|--------------|----------------------------|
+| **Site Administration → Actions → Runners** | Instance (global) | Yes (recommended) |
+| **Repo → Settings → Actions → Runners** | Repository | Yes |
+| **User profile → Settings → Actions → Runners** | Individual | Often **no** — jobs stay queued with “no matching online runner” |
+
+If your runner shows **Type: Individual** in Gitea but jobs never start, delete it and re-register with an **instance** or **repository** token (table above).
+
+Register (use **localhost** when Gitea runs on the same PC — public IP often fails locally):
+
+```powershell
+cd C:\gitea-runner
+# Stop daemon first (Ctrl+C) if running
+.\act_runner.exe register `
+  --instance "http://127.0.0.1:3000" `
+  --token "<token-from-Site-Admin-OR-repo-Runners-page>" `
+  --name "windows-staging" `
+  --labels "windows:host"
+```
+
+Start (leave running, or install as a Windows service later):
+
+```powershell
+.\act_runner.exe daemon
+```
+
+**Verify:** open **your repo** → **Settings → Actions → Runners** — `windows-staging` must appear here as **Idle/Online** (not only under user settings).
+
+**Requires:** `git` on PATH (for workflow checkout step).
+
+### 3. Secret env files (not in git)
+
+```powershell
+New-Item -ItemType Directory -Force -Path "C:\dyolink\secrets"
+```
+
+Copy examples and edit:
+
+- `infrastructure/database.staging.env.example` → `C:\dyolink\secrets\database.staging.env`
+- `infrastructure/backend.staging.env.example` → `C:\dyolink\secrets\backend.staging.env`
+
+Rules:
+
+- `DATABASE_URL` password must match `POSTGRES_PASSWORD`.
+- `FRONTEND_URL` must match `PUBLIC_BASE_URL` (e.g. `http://178.131.50.201:8088`).
+- Replace JWT secrets with long random values (not `CHANGE_ME`).
+
+### 4. Gitea repository Variables
+
+**Settings → Actions → Variables**
+
+| Name | Example | Notes |
+|------|---------|--------|
+| `REGISTRY_HOST` | `host.docker.internal:3000` | **Windows + Docker Desktop:** Docker runs in a Linux VM — `127.0.0.1` is the VM, not Gitea. Use `host.docker.internal:3000`. Also set Gitea `ROOT_URL` to match (see below). |
+| `REGISTRY_OWNER` | `admin` | Gitea user/org owning packages |
+| `PUBLIC_BASE_URL` | `http://178.131.50.201:8088` | How **users** open staging in a browser (public IP OK) |
+| `DEPLOY_SECRETS_DIR` | `C:/dyolink/secrets` | Forward slashes OK on Windows |
+| `CLONE_HOST` | `127.0.0.1:3000` | Git clone (runs on Windows host, not inside Docker VM) |
+| `STAGING_HTTP_PORT` | `8088` | Optional (8088 is default) |
+
+**Naming note:** Gitea rejects variable names starting with `GITEA_` or `GITHUB_`. Use `CLONE_HOST`, not `GITEA_CLONE_URL`.
+
+### 5. Gitea repository Secrets
+
+**Settings → Actions → Secrets**
+
+| Name | Value |
+|------|--------|
+| `REGISTRY_USERNAME` | Gitea username |
+| `REGISTRY_PASSWORD` | Gitea access token with **package read/write** |
+
+Create token: profile → **Settings → Applications → Generate New Token**.
+
+### 6. Firewall (once)
+
+```powershell
+New-NetFirewallRule -DisplayName "Dyolink Staging 8088" -Direction Inbound -Protocol TCP -LocalPort 8088 -Action Allow
+```
+
+### 7. External access on Windows + Docker Desktop (portproxy)
+
+Gitea on **:3000** runs natively on Windows and is reachable from your Mac. Staging **:8088** runs in **Docker Desktop** — `127.0.0.1:8088` works on the PC, but `http://<public-ip>:8088` from another machine may get **Empty reply from server** unless you forward the port.
+
+Compose binds nginx to **127.0.0.1:8088** only. After deploy, run **once** in **PowerShell as Administrator**:
+
+```powershell
+netsh interface portproxy add v4tov4 listenaddress=0.0.0.0 listenport=8088 connectaddress=127.0.0.1 connectport=8088
+netsh interface portproxy show all
+```
+
+Verify on the server:
+
+```powershell
+curl http://127.0.0.1:8088/health
+```
+
+From your Mac:
+
+```bash
+curl http://178.131.50.201:8088/health
+```
+
+If the public IP still fails but LAN works, add **router port forward 8088** → Windows PC (same as Gitea **3000**).
+
+To remove portproxy later:
+
+```powershell
+netsh interface portproxy delete v4tov4 listenaddress=0.0.0.0 listenport=8088
+```
+
+---
+
+## Test the pipeline
+
+### Before first run
+
+- [ ] Docker Desktop running
+- [ ] `act_runner.exe daemon` running
+- [ ] All Variables + Secrets set (including `CLONE_HOST`)
+- [ ] Secret env files exist under `DEPLOY_SECRETS_DIR`
+- [ ] Workflow enabled on `master` (see repo)
+
+### Option A — Manual workflow (safest first test)
+
+1. Gitea → repo → **Actions**
+2. **Registry — build, push, deploy** → **Run workflow** → branch `master`
+3. Watch jobs: **build-and-push** → **deploy** (first run ~15–30 min)
+
+### Option B — Push to master
+
+```bash
+git push origin master
+```
+
+Or merge a PR into `master` — same result.
+
+### Verify success
+
+**On Windows (PowerShell):**
+
+```powershell
+docker ps
+```
+
+Expect: `dyolink_nginx_staging`, `dyolink_backend_staging`, `dyolink_frontend_staging`, `dyolink_postgres_staging`.
+
+**From browser or another machine:**
+
+```text
+http://178.131.50.201:8088
+```
+
+**Health check:**
+
+```powershell
+curl http://178.131.50.201:8088/api/health
+```
+
+Expected: `{"status":"ok",...}`
+
+**Gitea packages:** profile/org → **Packages** — should list `dyolink-backend` and `dyolink-frontend` after first build.
+
+---
+
+## Manual deploy (without CI)
+
+Useful when debugging registry/compose without re-running the full workflow.
+
+On the Windows host, from repo `infrastructure/`:
+
+1. Create `deploy.registry.env` from [`deploy.registry.env.example`](deploy.registry.env.example)
+2. Set `REGISTRY_PREFIX`, `IMAGE_TAG`, `STAGING_HTTP_PORT`, `DEPLOY_SECRETS_DIR`
+3. `docker login 178.131.50.201:3000 -u <user>`
+4. `docker compose -f docker-compose.registry.yml --env-file deploy.registry.env pull backend frontend`
+5. `docker compose -f docker-compose.registry.yml --env-file deploy.registry.env up -d`
+
+---
+
+## Troubleshooting
+
+| Symptom | Fix |
+|---------|-----|
+| `no matching online runner with label` | Runner **offline** → start `act_runner.exe daemon`. Or wrong **runner level** → re-register with token from **Site Administration → Actions → Runners** or **repo → Settings → Actions → Runners** (not user profile). Confirm runner appears on **repo** Runners page as Online. |
+| Runner can't register on public IP | Use `http://127.0.0.1:3000` for `--instance` |
+| Variable name rejected in Gitea | No `GITEA_*` / `GITHUB_*` prefixes; use `CLONE_HOST` |
+| `docker login` connection refused on `127.0.0.1:3000` | **Docker Desktop on Windows:** set `REGISTRY_HOST=host.docker.internal:3000`, add it to insecure-registries, set Gitea `ROOT_URL=http://host.docker.internal:3000/`. Keep `CLONE_HOST=127.0.0.1:3000` for git. |
+| `docker login` / push denied, redirect to public IP | Set Gitea `ROOT_URL` to a host Docker can reach (`host.docker.internal:3000` on Windows Docker Desktop). |
+| `server gave HTTP response to HTTPS client` | Add registry host to Docker **insecure-registries**, restart Docker |
+| `Missing database.staging.env` | Check `DEPLOY_SECRETS_DIR` path and file names |
+| `docker login` denied | Token needs package permissions; check username/secret |
+| Git clone fails in workflow | Set `CLONE_HOST=127.0.0.1:3000` |
+| Port 8088 unreachable from Mac / empty reply | Docker Desktop: run **portproxy** (§7). `127.0.0.1:8088/health` must work on Windows first. |
+| Backend restart loop | JWT secrets still placeholder; fix `backend.staging.env` |
+| Backend DB auth error | `DATABASE_URL` password ≠ `POSTGRES_PASSWORD` |
+| `dumb-init docker-entrypoint.sh: No such file or directory` | Windows CRLF in shell scripts — fixed in Dockerfiles (rebuild images). |
+| `frontend is unhealthy` / deploy waits on frontend | Next.js `/` redirects to `/en` (3xx). Rebuild after healthcheck fix (accepts 2xx/3xx). |
+
+**Logs:**
+
+```powershell
+docker logs dyolink_backend_staging --tail 50
+docker logs dyolink_nginx_staging --tail 50
+docker logs dyolink_frontend_staging --tail 50
+```
+
+---
+
+## File reference
+
+| Path | Role |
+|------|------|
+| `.gitea/workflows/registry-build-deploy.yml` | CI: build, push, deploy |
+| `infrastructure/docker-compose.registry.yml` | Staging stack (pull-only images) |
+| `infrastructure/deploy.registry.env.example` | Manual deploy env template |
+| `infrastructure/database.staging.env.example` | Postgres secrets template |
+| `infrastructure/backend.staging.env.example` | API secrets template |
+| `infrastructure/nginx/http-only.conf` | HTTP reverse proxy for staging |
+
+---
+
+## Production (later)
+
+| Environment | Trigger | Host |
+|-------------|---------|------|
+| Staging | Push/merge to `master` | Windows + Gitea |
+| Production | Git tag `v*.*.*` | Linux + `nudentic.ir` |
+
+Production flow will use Docker Hub (or registry) + [`DEPLOY.md`](DEPLOY.md) — not yet wired to the same workflow.
diff --git a/infrastructure/deploy.registry.env.example b/infrastructure/deploy.registry.env.example
index 4e8eb3b..87f1add 100644
--- a/infrastructure/deploy.registry.env.example
+++ b/infrastructure/deploy.registry.env.example
@@ -15,5 +15,8 @@ IMAGE_TAG=latest
 STAGING_HTTP_PORT=8088
 
 # Absolute path on the server where database.staging.env and backend.staging.env live.
-# Use forward slashes on Windows. Same variable as Gitea Actions → DEPLOY_SECRETS_DIR.
-# DEPLOY_SECRETS_DIR=D:/dyolink/secrets
+# Use forward slashes on Windows. Same path as Gitea Actions variable DEPLOY_SECRETS_DIR.
+# DEPLOY_SECRETS_DIR=C:/dyolink/secrets
+#
+# Gitea Actions also needs CLONE_HOST=127.0.0.1:3000 when runner and Gitea share one Windows host.
+# See STAGING-DEPLOY.md (do not use GITEA_* variable names — Gitea rejects them).
diff --git a/infrastructure/docker-compose.registry.yml b/infrastructure/docker-compose.registry.yml
index acc2caf..2603d4f 100644
--- a/infrastructure/docker-compose.registry.yml
+++ b/infrastructure/docker-compose.registry.yml
@@ -75,7 +75,8 @@ services:
       - dyolink_staging
     restart: unless-stopped
     healthcheck:
-      test: ["CMD", "node", "-e", "require('http').get('http://127.0.0.1:3000/', (r) => {if(r.statusCode!==200)process.exit(1)})"]
+      # Root redirects to /en (next-intl) — accept 2xx/3xx as healthy.
+      test: ["CMD", "node", "-e", "require('http').get('http://127.0.0.1:3000/', (r) => { process.exit(r.statusCode >= 200 && r.statusCode < 400 ? 0 : 1); }).on('error', () => process.exit(1))"]
       interval: 30s
       timeout: 10s
       retries: 3
@@ -85,10 +86,13 @@ services:
     image: nginx:alpine
     container_name: dyolink_nginx_staging
     depends_on:
-      - backend
-      - frontend
+      backend:
+        condition: service_healthy
+      frontend:
+        condition: service_healthy
     ports:
-      - "${STAGING_HTTP_PORT:-8088}:80"
+      # Localhost only — Docker Desktop on Windows often breaks 0.0.0.0; use netsh portproxy for LAN/public (see STAGING-DEPLOY.md).
+      - "127.0.0.1:${STAGING_HTTP_PORT:-8088}:80"
     volumes:
       - ./nginx/http-only.conf:/etc/nginx/conf.d/default.conf:ro
       - ./logs/nginx-staging:/var/log/nginx
diff --git a/infrastructure/docker-compose.staging.yml b/infrastructure/docker-compose.staging.yml
index 81e7ef4..54a5102 100644
--- a/infrastructure/docker-compose.staging.yml
+++ b/infrastructure/docker-compose.staging.yml
@@ -77,7 +77,8 @@ services:
       - dyolink_staging
     restart: unless-stopped
     healthcheck:
-      test: ["CMD", "node", "-e", "require('http').get('http://127.0.0.1:3000/', (r) => {if(r.statusCode!==200)process.exit(1)})"]
+      # Root redirects to /en (next-intl) — accept 2xx/3xx as healthy.
+      test: ["CMD", "node", "-e", "require('http').get('http://127.0.0.1:3000/', (r) => { process.exit(r.statusCode >= 200 && r.statusCode < 400 ? 0 : 1); }).on('error', () => process.exit(1))"]
       interval: 30s
       timeout: 10s
       retries: 3
@@ -87,10 +88,12 @@ services:
     image: nginx:alpine
     container_name: dyolink_nginx_staging
     depends_on:
-      - backend
-      - frontend
+      backend:
+        condition: service_healthy
+      frontend:
+        condition: service_healthy
     ports:
-      - "${STAGING_HTTP_PORT:-8088}:80"
+      - "127.0.0.1:${STAGING_HTTP_PORT:-8088}:80"
     volumes:
       - ./nginx/http-only.conf:/etc/nginx/conf.d/default.conf:ro
       - ./logs/nginx-staging:/var/log/nginx
diff --git a/infrastructure/nginx/http-only.conf b/infrastructure/nginx/http-only.conf
index 133c685..9594e0b 100644
--- a/infrastructure/nginx/http-only.conf
+++ b/infrastructure/nginx/http-only.conf
@@ -1,15 +1,10 @@
 # HTTP only — local dev and IP-based staging (no TLS).
 # Use with: docker compose and map host port e.g. 8080:80 or 8088:80
+#
+# Dynamic proxy_pass via Docker DNS (127.0.0.11) so nginx starts even if
+# backend/frontend containers are not up yet (static upstream blocks fail at boot).
 
-upstream dyolink_backend {
-    server backend:3000;
-    keepalive 32;
-}
-
-upstream dyolink_frontend {
-    server frontend:3000;
-    keepalive 32;
-}
+resolver 127.0.0.11 valid=10s ipv6=off;
 
 server {
     listen 80;
@@ -19,7 +14,8 @@ server {
     client_max_body_size 50M;
 
     location / {
-        proxy_pass http://dyolink_frontend;
+        set $frontend_upstream http://frontend:3000;
+        proxy_pass $frontend_upstream;
         proxy_http_version 1.1;
         proxy_set_header Upgrade $http_upgrade;
         proxy_set_header Connection 'upgrade';
@@ -33,7 +29,8 @@ server {
     }
 
     location /api {
-        proxy_pass http://dyolink_backend;
+        set $backend_upstream http://backend:3000;
+        proxy_pass $backend_upstream;
         proxy_http_version 1.1;
         proxy_set_header Upgrade $http_upgrade;
         proxy_set_header Connection 'upgrade';