chore(ci): consolidate Gitea CI (#47)

## Summary

- consolidate vet, tests, lint, smoke, and cross-build into one pull-request-only job
- keep binary releases strictly v-tag-only with release-only write permission
- retain wrapper synchronization only for canonical wrapper changes on main
- pin actions and enforce exact trigger contracts

## Verification

- nix develop --command make check
- trigger mutation contract
- 28-workflow cross-repository actionlint audit

Generated with Claude CodeReviewed-on: #47

Co-authored-by: vickydotbat <vickydotbat@tutamail.com>

.gitea/workflows/build-binaries.yml

@@ -1,25 +1,22 @@
-# Cross-platform Crucible binaries (D7 trigger standard):
-#   PR / push main -> cross-build ALL targets to prove they compile (no publish)
-#   tag v*         -> build all targets + SHA256SUMS, upload to the Gitea release
+# Cross-platform Crucible release binaries: a v* tag builds all targets,
+# then uploads them, SHA256SUMS, and the canonical wrappers to its Gitea release.
 # Crucible is pure Go (CGO_ENABLED=0), so cross-compiling is a fast loop.
 name: build-binaries
 
 on:
-  pull_request:
   push:
-    branches: [main]
     tags: ['v*']
-    paths-ignore:
-      - "docs/**"
-      - "README.md"
-      - "AGENTS.md"
-      - "LICENSE"
+
+permissions:
+  code: read
+  releases: write
 
 jobs:
   build-binaries:
     runs-on: nix-docker
+    timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with: { fetch-depth: 0 }
 
       - name: Cross-build all targets
@@ -45,9 +42,8 @@ jobs:
           '
 
       - name: Upload to Gitea release
-        if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v')
         env:
-          TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          TOKEN: ${{ secrets.GITEA_TOKEN }}
           TAG: ${{ github.ref_name }}
           REPO: ${{ github.repository }}
           SERVER: ${{ github.server_url }}

.gitea/workflows/ci.yml

@@ -0,0 +1,47 @@
+# Pull-request validation for Crucible. Releases and wrapper synchronization
+# have their own narrow workflows because they need tag/main events.
+name: ci
+
+on:
+  pull_request:
+
+permissions: read-all
+
+jobs:
+  ci:
+    runs-on: nix-docker
+    timeout-minutes: 60
+    steps:
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          fetch-depth: 0
+
+      - name: vet + test + lint
+        run: |
+          nix develop --command bash -c '
+            set -euo pipefail
+            go vet ./...
+            go test ./...
+            shellcheck scripts/*.sh
+            yamllint .gitea
+          '
+
+      - name: binary smoke (fail-closed contract)
+        run: nix develop --command make smoke
+
+      - name: Cross-build all targets
+        run: |
+          nix develop --command bash -c '
+            set -euo pipefail
+            sha="$(git rev-parse --short=12 HEAD)"
+            ldflags="-s -w -X git.westgate.pw/ShadowsOverWestgate/sow-tools/internal/buildinfo.Version=${sha}"
+            rm -rf dist && mkdir -p dist
+            export CGO_ENABLED=0
+            for target in linux/amd64 linux/arm64 darwin/amd64 darwin/arm64 windows/amd64 windows/arm64; do
+              os="${target%/*}"; arch="${target#*/}"
+              ext=""; [ "$os" = windows ] && ext=".exe"
+              echo "building crucible-${os}-${arch}${ext}"
+              GOOS="$os" GOARCH="$arch" go build -trimpath -ldflags "$ldflags" \
+                -o "dist/crucible-${os}-${arch}${ext}" ./cmd/crucible
+            done
+          '

.gitea/workflows/sync-wrappers.yml

@@ -14,11 +14,14 @@ on:
       - 'wrappers/crucible.sh'
       - 'wrappers/crucible.ps1'
 
+permissions: read-all
+
 jobs:
   sync:
     runs-on: nix-docker
+    timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
       - name: Open sync PRs to consumers
         env:

.gitea/workflows/test.yml

@@ -1,30 +0,0 @@
-# Lint + unit tests for the Crucible suite. PR-first: PRs + push to main (D7).
-name: test
-
-on:
-  push:
-    branches: [main]
-    paths-ignore:
-      - "docs/**"
-      - "README.md"
-      - "AGENTS.md"
-      - "LICENSE"
-  pull_request:
-
-jobs:
-  test:
-    runs-on: nix-docker
-    steps:
-      - uses: actions/checkout@v4
-        with: { fetch-depth: 0 }
-      - name: vet + test + lint
-        run: |
-          nix develop --command bash -c '
-            set -euo pipefail
-            go vet ./...
-            go test ./...
-            shellcheck scripts/*.sh
-            yamllint .gitea
-          '
-      - name: binary smoke (fail-closed contract)
-        run: nix develop --command make smoke