ci: remove .forgejo/ (Gitea 1.27 uses .gitea/ instead)

Gitea 1.27.0-rootless looks for workflows in .gitea/workflows/, not .forgejo/.
Removed unused .forgejo/ directory entirely.

Workflow is now at: .gitea/workflows/build.yaml

.forgejo/README.md

@@ -1,135 +0,0 @@
-# Forgejo CI/CD - Build & Push Workflow
-
-**Status**: ✅ ACTIVE (Production-ready)
-
-## CI Workflow
-
-The `.forgejo/workflows/build.yaml` automatically:
-
-1. Triggers on **push to main** branch
-2. Builds Docker image (multi-stage Rust)
-3. Tags: `latest` + `short-SHA`
-4. Pushes to registry
-5. Cleans up (logout)
-
-## Required Secrets
-
-Set in Forgejo repository settings → Secrets:
-
-- `REGISTRY_PAT`: Personal access token (Docker login credentials)
-  - Must have push access to `forgejo.riotpiao.com/rock/poimen-memory`
-  - Use service account or personal token with registry scope
-
-## What imageUpdater Needs
-
-The CI pushes images to:
-```
-forgejo.riotpiao.com/rock/poimen-memory:latest
-forgejo.riotpiao.com/rock/poimen-memory:<short-SHA>
-```
-
-imageUpdater can:
-- Watch for `:latest` tag
-- Poll registry for new versions
-- Trigger K8s deployment updates
-
-## Manual Override
-
-If CI fails, build manually:
-
-```bash
-export REGISTRY_TOKEN='<your-token>'
-./scripts/build-and-push.sh
-```
-
-## Workflow Design
-
-**Minimal & Reliable**:
-- ✅ No third-party actions (no hidden timeouts)
-- ✅ Direct docker commands only
-- ✅ Progress output visible
-- ✅ Proper error handling
-- ✅ Clean secrets handling
-- ✅ 5-10 minute runtime
-
-**Single Workflow**:
-- ✅ ONE `build.yaml` (no race conditions)
-- ✅ No competing workflows
-- ✅ Deterministic behavior
-- ✅ Easy to debug
-
-**Runner Selection**:
-
-Workflow uses: `runs-on: rust`
-
-Available runners in Forgejo:
-- `golang` - golang:1.26-bookworm + dind (for Go projects)
-- `rust` - rust:1.83-bookworm + dind (✅ for Rust projects)
-- `node` - node:22-bookworm (for Node.js projects)
-
-Why `rust` for poimen-memory:
-- ✅ Pre-installed Rust toolchain
-- ✅ Docker-in-Docker (dind) for image builds
-- ✅ 2 CPU, 4GB RAM limits (sufficient)
-- ✅ 1.83-bookworm base (production-ready)
-
-## CI Status
-
-Check latest build: Forgejo repository → Actions tab
-
-Expected flow:
-1. Push to main
-2. Forgejo CI triggers (30s delay)
-3. Build starts (~3-5 min)
-4. Image pushed to registry
-5. imageUpdater detects new version
-6. K8s deployment updated (via ArgoCD or controller)
-
-## Deployment Trigger
-
-Once image is pushed, imageUpdater can:
-
-```yaml
-# ArgoCD Image Updater strategy
-apiVersion: argoproj.io/v1alpha1
-kind: ApplicationSet
-metadata:
-  name: memory-auto-update
-spec:
-  generators:
-    - image:
-        registrySelector:
-          registry: forgejo.riotpiao.com/rock/poimen-memory
-        tagSelector:
-          pattern: "^latest$|^[0-9a-f]{7}$"
-  template:
-    spec:
-      source:
-        image: forgejo.riotpiao.com/rock/poimen-memory:latest
-```
-
-Or use external webhook to trigger K8s deployment rollout.
-
-## Troubleshooting
-
-**CI Hanging?**
-- Check Forgejo runner logs
-- Verify `REGISTRY_PAT` secret is set
-- Verify docker socket is accessible in runner
-
-**Login Failed?**
-- Verify `REGISTRY_HOST` secret
-- Check credentials in Vault
-
-**Build Failed?**
-- Check: `cargo test --lib --all` locally
-- Check: `docker build .` works locally
-- Review build output in Forgejo Actions tab
-
-## Files
-
-- `.forgejo/workflows/build.yaml` ← **Production workflow**
-- `.forgejo/README.md` ← This file
-- `./Dockerfile` ← Multi-stage Rust build
-- `./scripts/build-and-push.sh` ← Manual fallback
-# CI Test Trigger

.forgejo/workflows/build.yaml

@@ -1,52 +0,0 @@
-name: Build and Push Memory Service
-
-on:
-  push:
-    branches:
-      - main
-
-jobs:
-  build-and-push:
-    name: Build and Push Image
-    # Use 'rust' runner (not 'docker')
-    # Available runners in Forgejo: golang, rust, node
-    # rust runner provides: Rust 1.83-bookworm + Docker-in-Docker for image builds
-    runs-on: rust
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@v4
-
-      - name: Get commit info
-        id: info
-        run: |
-          SHORT_SHA=$(git rev-parse --short HEAD)
-          COMMIT_MSG=$(git log -1 --pretty=%B | head -1)
-          echo "short_sha=${SHORT_SHA}" >> $GITHUB_OUTPUT
-          echo "commit_msg=${COMMIT_MSG}" >> $GITHUB_OUTPUT
-          echo "Building: ${SHORT_SHA} - ${COMMIT_MSG}"
-
-      - name: Docker login
-        run: |
-          echo "${{ secrets.REGISTRY_PAT }}" | \
-          docker login -u rock --password-stdin forgejo.riotpiao.com
-
-      - name: Build image
-        run: |
-          docker build \
-            --tag forgejo.riotpiao.com/rock/poimen-memory:${{ steps.info.outputs.short_sha }} \
-            --tag forgejo.riotpiao.com/rock/poimen-memory:latest \
-            .
-          echo "✅ Image built successfully"
-
-      - name: Push image
-        run: |
-          docker push forgejo.riotpiao.com/rock/poimen-memory:${{ steps.info.outputs.short_sha }}
-          docker push forgejo.riotpiao.com/rock/poimen-memory:latest
-          echo "✅ Image pushed successfully"
-          echo "Image: forgejo.riotpiao.com/rock/poimen-memory:latest"
-
-      - name: Cleanup
-        if: always()
-        run: |
-          docker logout forgejo.riotpiao.com || true
-          echo "✅ Cleanup complete"