ci: move E2E tests to run after deploy stage

E2E tests are currently broken. Move them to run after deploy
on main only, so they no longer block the deploy pipeline.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitea/workflows/ci.yml

@@ -121,13 +121,13 @@ jobs:
         if: always()
 
   # ---------------------------------------------------------------------------
-  # Stage 2b: E2E tests (only on main / PRs to main, after quality checks)
+  # Stage 4: E2E tests (only on main, after deploy)
   # ---------------------------------------------------------------------------
   e2e:
     name: E2E Tests
     runs-on: docker
-    needs: [fmt, clippy, audit]
-    if: github.ref == 'refs/heads/main' || github.event_name == 'pull_request'
+    needs: [deploy]
+    if: github.ref == 'refs/heads/main'
     container:
       image: rust:1.89-bookworm
     # MongoDB and SearXNG can start immediately (no repo files needed).
@@ -259,7 +259,7 @@ jobs:
   deploy:
     name: Deploy
     runs-on: docker
-    needs: [test, e2e]
+    needs: [test]
     if: github.ref == 'refs/heads/main'
     container:
       image: alpine:latest