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>

docker/prometheus/prometheus.yml

@@ -99,7 +99,7 @@ scrape_configs:
     scrape_interval: 30s
 
   # NOTE: Individual app backends (chat, todo, calendar, contacts, storage,
-  # nutriphi, music, planta, picture) have been REMOVED — all migrated to
+  # nutriphi, music, plants, picture) have been REMOVED — all migrated to
   # local-first architecture. Only uload-server and memoro-server remain.
 
   # Mana LLM Gateway (Ollama + Google Fallback)
@@ -227,7 +227,7 @@ scrape_configs:
           - https://mana.how/storage
           - https://mana.how/presi
           - https://mana.how/nutriphi
-          - https://mana.how/planta
+          - https://mana.how/plants
           - https://mana.how/calc
           - https://mana.how/zitare
           - https://mana.how/cards