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>

services/mana-core-auth/src/db/schema/feedback.schema.ts

@@ -38,7 +38,7 @@ export const userFeedback = feedbackSchema.table(
 	'user_feedback',
 	{
 		id: uuid('id').primaryKey().defaultRandom(),
-		userId: uuid('user_id')
+		userId: text('user_id')
 			.references(() => users.id, { onDelete: 'cascade' })
 			.notNull(),
 		appId: text('app_id').notNull(), // 'chat', 'picture', 'zitare', etc.
@@ -82,7 +82,7 @@ export const feedbackVotes = feedbackSchema.table(
 		feedbackId: uuid('feedback_id')
 			.references(() => userFeedback.id, { onDelete: 'cascade' })
 			.notNull(),
-		userId: uuid('user_id')
+		userId: text('user_id')
 			.references(() => users.id, { onDelete: 'cascade' })
 			.notNull(),
 		createdAt: timestamp('created_at', { withTimezone: true }).defaultNow().notNull(),