ci: inject .env files from Gitea variables during deploy

Replace the basic .env.example sync with a deploy script that fetches
repo variables from the Gitea API and writes them to the correct .env
files, preserving comments from .env.example templates.

.gitea/workflows/docker.yaml

@@ -254,30 +254,16 @@ jobs:
         set -euo pipefail
         git pull
 
-    - name: Sync .env files from .env.example
+    - name: Inject .env files from Gitea variables
       working-directory: /docker/FarmaFinder
+      env:
+        GITEA_TOKEN: ${{ vars.GITEA_TOKEN }}
+        GITEA_OWNER: Ichitux
+        GITEA_REPO: FarmaFinder
+        WORK_DIR: /docker/FarmaFinder
       run: |
         set -euo pipefail
-        while IFS= read -r env_example; do
-          dir=$(dirname "$env_example")
-          env_file="$dir/.env"
-
-          if [ ! -f "$env_file" ]; then
-            cp "$env_example" "$env_file"
-            echo "[env-sync] Created $env_file from $env_example"
-          else
-            while IFS= read -r line || [ -n "$line" ]; do
-              case "$line" in
-                ''|\#*) continue ;;
-              esac
-              key=$(echo "$line" | cut -d'=' -f1)
-              if ! grep -qF "$key=" "$env_file"; then
-                echo "$line" >> "$env_file"
-                echo "[env-sync] Added missing key '$key' to $env_file"
-              fi
-            done < "$env_example"
-          fi
-        done < <(find apps -name ".env.example" -type f)
+        bash scripts/deploy-env.sh
 
     - name: Deploy containers
       working-directory: /docker/FarmaFinder