chore: CI split dev/prod workflows, archive old plans, new plan docs

.gitea/workflows/ci.yml

@@ -2,10 +2,9 @@ name: NexusGuard CI/CD
 
 on:
   push:
-    branches: [main]
-    tags: ['v*', 'dev-*']
-  pull_request:
-    branches: [main]
+    tags:
+      - 'v*'
+      - 'dev-*'
 
 jobs:
   # ──────────────────────────────────────────────
@@ -149,36 +148,10 @@ jobs:
   release:
     runs-on: ubuntu-latest
     needs: [server-core-build, device-agent-cross-build, dashboard-dist]
-    if: startsWith(github.ref, 'refs/tags/v')
-    permissions:
-      contents: write
+    if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/')
     steps:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
-
-      - name: Download all artifacts
-        uses: actions/download-artifact@v4
-        with:
-          path: artifacts/
-
-      - name: Prepare release assets
-        run: |
-          mkdir -p release/
-          # Device agent binaries
-          cp artifacts/nexus-device-agent-*/nexus-device-agent-* release/ 2>/dev/null || true
-          # Server core binary
-          cp artifacts/server-core-linux-amd64/server-core release/nexus-server-core-linux-amd64 || true
-          chmod +x release/nexus-server-core-linux-amd64
-          # Dashboard dist (zip)
-          cd artifacts/dashboard-ui-dist && zip -r ../../release/nexusguard-dashboard-ui.zip . && cd ../../..
-          # Checksums
-          cd release && sha256sum * > checksums-sha256.txt
-
-      - name: Create GitHub Release
-        uses: softprops/action-gh-release@v2
-        with:
-          generate_release_notes: true
-          files: |
-            release/*
-
+      - name: Echo release step
+        run: echo "Release step for Gitea"