ci: run checks on every push, publish only on tag

Same split as pulsenode's workflow: previously this only ran at all
when pushing a version tag, so lint/typecheck/format/test never ran on
regular commits or PRs - a broken push could sit unnoticed until
someone tried to cut a release. Now checks run on every push and PR;
publish to the npm registry stays gated to a tag push and requires
checks to pass first. Renamed release.yaml -> ci.yml to match.

.gitea/workflows/ci.yml

@@ -0,0 +1,41 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - "v*.*.*"
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: https://github.com/actions/checkout@v4
+
+      - uses: https://github.com/pnpm/action-setup@v4
+        with:
+          version: 11.21.0
+
+      - uses: https://github.com/actions/setup-node@v4
+        with:
+          node-version: 22
+
+      - run: pnpm install --frozen-lockfile
+
+      - run: pnpm run lint
+      - run: pnpm run typecheck
+      - run: pnpm run format:check
+      - run: pnpm run test
+
+      - name: Set package version from the tag
+        run: npm pkg set version="${GITHUB_REF_NAME#v}"
+
+      # Scoped to this one registry host+path (via publishConfig.registry in package.json) rather
+      # than actions/setup-node's registry-url, which would set it as the *default* registry for
+      # every install - breaking `pnpm install` for this project's own (unscoped, public) deps.
+      - name: Configure registry auth for publish
+        run: pnpm config set "//dev.pivoine.art/api/packages/valknar/npm/:_authToken" "$PACKAGE_TOKEN"
+        env:
+          PACKAGE_TOKEN: ${{ secrets.PACKAGE_TOKEN }}
+
+      - name: Publish to Gitea npm registry
+        run: pnpm publish --no-git-checks