refactor: rename planta → plants, clean up codebase

- Rename planta module to plants everywhere (routes, modules, API,
  branding, i18n, docker, docs, shared packages)
- Fix package name collisions: @mana/credits-service, @mana/subscriptions-service
  (unblocks turbo)
- Extract layout composables: use-ai-tier-items, use-sync-status-items,
  RouteTierGate (layout 1345→1015 lines)
- Create shared DB pool for apps/api (lib/db.ts), migrate 5 modules
- Add automations module queries.ts with useAllAutomations/useEnabledAutomations
- Remove debug console.log statements from production code
- Rename storage display name: Ablage → Speicher

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

apps/api/src/modules/todo/routes.ts

@@ -17,8 +17,8 @@ import { rrulestr } from 'rrule';
 import { z } from 'zod';
 import { eq, and, asc, sql } from 'drizzle-orm';
 import { drizzle } from 'drizzle-orm/postgres-js';
-import postgres from 'postgres';
 import { serviceAuthMiddleware, type AuthVariables } from '@mana/shared-hono';
+import { getConnection } from '../../lib/db';
 import {
 	pgSchema,
 	uuid,
@@ -33,9 +33,6 @@ import {
 
 // ─── DB Schema (minimal, server-only) ──────────────────────
 
-const DATABASE_URL =
-	process.env.DATABASE_URL ?? 'postgresql://mana:devpassword@localhost:5432/mana_platform';
-
 const todoSchema = pgSchema('todo');
 
 const tasks = todoSchema.table('tasks', {
@@ -88,8 +85,7 @@ const reminders = todoSchema.table(
 	})
 );
 
-const connection = postgres(DATABASE_URL, { max: 5, idle_timeout: 20 });
-const db = drizzle(connection, { schema: { tasks, projects, reminders } });
+const db = drizzle(getConnection(), { schema: { tasks, projects, reminders } });
 
 // ─── Routes ────────────────────────────────────────────────