feat(publish): add Gitea npm registry publish script + docs

- scripts/publish-all.sh: bun pm pack (resolves workspace:*) + npm publish
- All 14 public @uncaged/* packages published to git.shazhou.work
- CLAUDE.md: document Gitea registry, bunfig.toml scoped registry, publish workflow
- bun link docs demoted to alternative for un-published local changes

package.json

@@ -12,7 +12,9 @@
     "test": "bun run --filter '*' test",
     "link": "./scripts/link-all.sh",
     "link:consume": "./scripts/link-all.sh --consume",
-    "link:unlink": "./scripts/link-all.sh --unlink"
+    "link:unlink": "./scripts/link-all.sh --unlink",
+    "publish:gitea": "./scripts/publish-all.sh",
+    "publish:gitea:dry": "./scripts/publish-all.sh --dry-run"
   },
   "devDependencies": {
     "@biomejs/biome": "^2.4.14",