feat(registry): Gitea npm registry publish config + Changesets

- .npmrc: @mosaic scope points to Gitea registry
- Changesets initialized with initial minor release
- publishConfig added to all packages
- Woodpecker publish step on main branch

.woodpecker.yml

@@ -33,3 +33,17 @@ steps:
         image: valkey/valkey:8-alpine
         environment:
           - ALLOW_EMPTY_PASSWORD=yes
+
+  - name: publish
+    image: node:22-alpine
+    depends_on: [test]
+    when:
+      branch: main
+      event: push
+    environment:
+      GITEA_NPM_TOKEN:
+        from_secret: gitea_npm_token
+    commands:
+      - corepack enable
+      - pnpm changeset version || true
+      - pnpm changeset publish