Move CI workflows to repo root .gitea/workflows/ (Gitea requires root location)

- 6 per-product CI workflows with path filters
- P1: Rust (cargo test + clippy + fmt)
- P2: Go agent (go test + vet) + Node SaaS (tsc + npm test)
- P3-P6: Node (npm ci + tsc + npm test)
- Removed old per-product .gitea dirs (Gitea ignores non-root workflows)

products/02-iac-drift-detection/.gitea/workflows/ci-saas.yml

@@ -1,31 +0,0 @@
-name: CI - SaaS
-on:
-  push:
-    branches: [main]
-    paths:
-      - 'products/02-iac-drift-detection/saas/**'
-  pull_request:
-    paths:
-      - 'products/02-iac-drift-detection/saas/**'
-
-jobs:
-  test:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-
-      - uses: actions/setup-node@v4
-        with:
-          node-version: '22'
-
-      - name: Install deps
-        run: npm ci
-        working-directory: products/02-iac-drift-detection/saas
-
-      - name: Type check
-        run: npx tsc --noEmit
-        working-directory: products/02-iac-drift-detection/saas
-
-      - name: Test
-        run: npm test
-        working-directory: products/02-iac-drift-detection/saas

products/02-iac-drift-detection/.gitea/workflows/ci.yml

@@ -1,62 +0,0 @@
-name: CI
-on:
-  push:
-    branches: [main]
-  pull_request:
-
-jobs:
-  agent-test:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-
-      - uses: actions/setup-go@v5
-        with:
-          go-version: '1.22'
-
-      - name: Test agent
-        run: go test ./...
-        working-directory: products/02-iac-drift-detection/agent
-
-      - name: Vet
-        run: go vet ./...
-        working-directory: products/02-iac-drift-detection/agent
-
-  saas-test:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-
-      - uses: actions/setup-node@v4
-        with:
-          node-version: '22'
-
-      - name: Install deps
-        run: npm ci
-        working-directory: products/02-iac-drift-detection/saas
-
-      - name: Type check
-        run: npx tsc --noEmit
-        working-directory: products/02-iac-drift-detection/saas
-
-      - name: Test
-        run: npm test
-        working-directory: products/02-iac-drift-detection/saas
-
-  agent-build:
-    runs-on: ubuntu-latest
-    needs: agent-test
-    if: github.ref == 'refs/heads/main'
-    steps:
-      - uses: actions/checkout@v4
-
-      - uses: actions/setup-go@v5
-        with:
-          go-version: '1.22'
-
-      - name: Build agent binaries
-        run: |
-          GOOS=linux GOARCH=amd64 go build -o dist/drift-linux-amd64 ./cmd/drift
-          GOOS=darwin GOARCH=arm64 go build -o dist/drift-darwin-arm64 ./cmd/drift
-          GOOS=windows GOARCH=amd64 go build -o dist/drift-windows-amd64.exe ./cmd/drift
-        working-directory: products/02-iac-drift-detection/agent

products/02-iac-drift-detection/.gitea/workflows/deploy.yml

@@ -1,19 +0,0 @@
-name: Deploy
-on:
-  push:
-    branches: [main]
-    paths: ['products/02-iac-drift-detection/saas/**']
-
-jobs:
-  deploy-saas:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-
-      - uses: superfly/flyctl-actions/setup-flyctl@master
-
-      - name: Deploy SaaS to Fly.io
-        run: flyctl deploy --config fly.toml --remote-only
-        working-directory: products/02-iac-drift-detection/saas
-        env:
-          FLY_API_TOKEN: ${{ secrets.FLY_API_TOKEN }}