feat: local tier gateway with PGlite + Gitea-only publishing + repo linking

- Add PGlite (embedded Postgres) for local tier — gateway runs without
  external PG server. Same schema, same Drizzle API, zero module refactor.
- Install wizard now offers tier selection (local vs team).
  Local skips DATABASE_URL/VALKEY_URL, writes mosaic.config.json.
- Comment out npmjs publish step in CI (preserved for future use).
- Revert gateway publishConfig to Gitea registry, include in Gitea publish.
- Add repository field to all 23 publishable package.json files for
  Gitea package-to-repo linking.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

apps/gateway/package.json

@@ -1,6 +1,11 @@
 {
   "name": "@mosaic/gateway",
   "version": "0.0.2",
+  "repository": {
+    "type": "git",
+    "url": "https://git.mosaicstack.dev/mosaic/mosaic-stack.git",
+    "directory": "apps/gateway"
+  },
   "type": "module",
   "main": "dist/main.js",
   "bin": {
@@ -10,7 +15,7 @@
     "dist"
   ],
   "publishConfig": {
-    "registry": "https://registry.npmjs.org/",
+    "registry": "https://git.mosaicstack.dev/api/packages/mosaic/npm/",
     "access": "public"
   },
   "scripts": {

apps/gateway/src/database/database.module.ts

@@ -1,5 +1,8 @@
+import { mkdirSync } from 'node:fs';
+import { homedir } from 'node:os';
+import { join } from 'node:path';
 import { Global, Inject, Module, type OnApplicationShutdown } from '@nestjs/common';
-import { createDb, type Db, type DbHandle } from '@mosaic/db';
+import { createDb, createPgliteDb, type Db, type DbHandle } from '@mosaic/db';
 import { createStorageAdapter, type StorageAdapter } from '@mosaic/storage';
 import type { MosaicConfig } from '@mosaic/config';
 import { MOSAIC_CONFIG } from '../config/config.module.js';
@@ -13,8 +16,14 @@ export const STORAGE_ADAPTER = 'STORAGE_ADAPTER';
   providers: [
     {
       provide: DB_HANDLE,
-      useFactory: (config: MosaicConfig): DbHandle =>
-        createDb(config.storage.type === 'postgres' ? config.storage.url : undefined),
+      useFactory: (config: MosaicConfig): DbHandle => {
+        if (config.tier === 'local') {
+          const dataDir = join(homedir(), '.config', 'mosaic', 'gateway', 'pglite');
+          mkdirSync(dataDir, { recursive: true });
+          return createPgliteDb(dataDir);
+        }
+        return createDb(config.storage.type === 'postgres' ? config.storage.url : undefined);
+      },
       inject: [MOSAIC_CONFIG],
     },
     {