fix(db): use TEXT for user_id columns across entire codebase

Better Auth generates non-UUID user IDs (32-char base62 format like
'otUe1YrfENPdHnrF3g1vSBfpkQfambCZ'). Changed all `uuid('user_id')` to
`text('user_id')` in Drizzle schemas for consistency with auth system.

Affected packages/apps:
- apps/calendar, clock, picture, zitare
- games/figgos, voxelava
- packages/manadeck-database, news-database, uload-database
- services/mana-core-auth (feedback schema)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

packages/news-database/src/schema/articles.ts

@@ -29,7 +29,7 @@ export const articles = pgTable(
 		summary: text('summary'),
 
 		// For user-saved articles
-		userId: uuid('user_id').references(() => users.id, { onDelete: 'cascade' }),
+		userId: text('user_id').references(() => users.id, { onDelete: 'cascade' }),
 		originalUrl: text('original_url'),
 		parsedContent: text('parsed_content'),
 		isArchived: boolean('is_archived').default(false),

packages/news-database/src/schema/auth.ts

@@ -4,7 +4,7 @@ import { users } from './users';
 // Better Auth Sessions
 export const sessions = pgTable('sessions', {
 	id: uuid('id').primaryKey().defaultRandom(),
-	userId: uuid('user_id')
+	userId: text('user_id')
 		.references(() => users.id, { onDelete: 'cascade' })
 		.notNull(),
 	token: text('token').notNull().unique(),
@@ -18,7 +18,7 @@ export const sessions = pgTable('sessions', {
 // Better Auth Accounts (for OAuth providers)
 export const accounts = pgTable('accounts', {
 	id: uuid('id').primaryKey().defaultRandom(),
-	userId: uuid('user_id')
+	userId: text('user_id')
 		.references(() => users.id, { onDelete: 'cascade' })
 		.notNull(),
 	providerId: text('provider_id').notNull(), // 'credential', 'google', 'apple', etc.

packages/news-database/src/schema/interactions.ts

@@ -1,6 +1,7 @@
 import {
 	pgTable,
 	uuid,
+	text,
 	timestamp,
 	boolean,
 	real,
@@ -15,7 +16,7 @@ export const userArticleInteractions = pgTable(
 	'user_article_interactions',
 	{
 		id: uuid('id').primaryKey().defaultRandom(),
-		userId: uuid('user_id')
+		userId: text('user_id')
 			.references(() => users.id, { onDelete: 'cascade' })
 			.notNull(),
 		articleId: uuid('article_id')