refactor(db): consolidate ~20+ databases into 2 (mana_platform + mana_sync)

Mirrors the frontend unification (single IndexedDB) on the backend.
All services now use pgSchema() for isolation within one shared database,
enabling cross-schema JOINs, simplified ops, and zero DB setup for new apps.

- Migrate 7 services from pgTable() to pgSchema(): mana-user (usr),
  mana-media (media), todo, traces, presi, uload, cards
- Update all DATABASE_URLs in .env.development, docker-compose, configs
- Rewrite init-db scripts for 2 databases + 12 schemas
- Rewrite setup-databases.sh for consolidated architecture
- Update shared-drizzle-config default to mana_platform
- Update CLAUDE.md with new database architecture docs

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

apps/uload/packages/uload-database/src/index.ts

@@ -22,8 +22,7 @@ let client: ReturnType<typeof postgres> | null = null;
 export function getDb(): ReturnType<typeof drizzle<typeof schema>> {
 	if (!db) {
 		const connectionString =
-			process.env.DATABASE_URL ||
-			'postgresql://uload:uload_dev_password_123@localhost:5432/uload_dev';
+			process.env.DATABASE_URL || 'postgresql://manacore:devpassword@localhost:5432/mana_platform';
 
 		client = postgres(connectionString, {
 			max: 10,

apps/uload/packages/uload-database/src/schema.ts

@@ -1,5 +1,5 @@
 import {
-	pgTable,
+	pgSchema,
 	uuid,
 	text,
 	boolean,
@@ -10,10 +10,12 @@ import {
 } from 'drizzle-orm/pg-core';
 import { relations } from 'drizzle-orm';
 
+export const uloadSchema = pgSchema('uload');
+
 // ============================================
 // Users Table
 // ============================================
-export const users = pgTable(
+export const users = uloadSchema.table(
 	'users',
 	{
 		id: uuid('id').primaryKey().defaultRandom(),
@@ -48,7 +50,7 @@ export const users = pgTable(
 // ============================================
 // Accounts Table
 // ============================================
-export const accounts = pgTable(
+export const accounts = uloadSchema.table(
 	'accounts',
 	{
 		id: uuid('id').primaryKey().defaultRandom(),
@@ -70,7 +72,7 @@ export const accounts = pgTable(
 // ============================================
 // Workspaces Table
 // ============================================
-export const workspaces = pgTable(
+export const workspaces = uloadSchema.table(
 	'workspaces',
 	{
 		id: uuid('id').primaryKey().defaultRandom(),
@@ -92,7 +94,7 @@ export const workspaces = pgTable(
 // ============================================
 // Links Table
 // ============================================
-export const links = pgTable(
+export const links = uloadSchema.table(
 	'links',
 	{
 		id: uuid('id').primaryKey().defaultRandom(),
@@ -129,7 +131,7 @@ export const links = pgTable(
 // ============================================
 // Clicks Table
 // ============================================
-export const clicks = pgTable(
+export const clicks = uloadSchema.table(
 	'clicks',
 	{
 		id: uuid('id').primaryKey().defaultRandom(),