refactor: rename ManaDeck to Cards across entire monorepo

Rename the flashcard/deck management app from ManaDeck to Cards:
- Directory: apps/manadeck → apps/cards, packages/manadeck-database → packages/cards-database
- Packages: @manadeck/* → @cards/*, @manacore/manadeck-database → @manacore/cards-database
- Domain: manadeck.mana.how → cards.mana.how
- Storage: manadeck-storage → cards-storage
- Database: manadeck → cards
- All shared packages, infra configs, services, i18n, and docs updated
- 244 files changed, zero remaining manadeck references

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

apps/docs/src/content/docs/architecture/authentication.mdx

@@ -279,5 +279,5 @@ Never enable auth bypass in production!
 | Chat | `@mana-core/nestjs-integration` | 3002 |
 | Picture | `@manacore/shared-nestjs-auth` | 3006 |
 | Zitare | `@manacore/shared-nestjs-auth` | 3007 |
-| ManaDeck | `@mana-core/nestjs-integration` | 3009 |
+| Cards | `@mana-core/nestjs-integration` | 3009 |
 | Contacts | `@manacore/shared-nestjs-auth` | 3015 |

apps/docs/src/content/docs/architecture/overview.mdx

@@ -114,7 +114,7 @@ Manacore is a multi-app ecosystem with shared infrastructure, enabling rapid dev
 | chat-backend | 3002 | Chat API |
 | picture-backend | 3006 | Image generation |
 | zitare-backend | 3007 | Quotes API |
-| manadeck-backend | 3009 | Card management |
+| cards-backend | 3009 | Card management |
 | contacts-backend | 3015 | Contacts API |
 | calendar-backend | 3014 | Calendar API |
 | mana-search | 3021 | Search service |

apps/docs/src/content/docs/architecture/storage.mdx

@@ -36,7 +36,7 @@ open http://localhost:9001
 |--------|---------|---------|
 | `picture-storage` | Picture | AI-generated images |
 | `chat-storage` | Chat | User file uploads |
-| `manadeck-storage` | ManaDeck | Card/deck assets |
+| `cards-storage` | Cards | Card/deck assets |
 | `nutriphi-storage` | NutriPhi | Meal photos |
 | `contacts-storage` | Contacts | Contact avatars |
 | `calendar-storage` | Calendar | Event attachments |
@@ -99,7 +99,7 @@ async function listUserFiles(userId: string) {
 import {
   createPictureStorage,
   createChatStorage,
-  createManaDeckStorage,
+  createCardsStorage,
   createContactsStorage,
 } from '@manacore/shared-storage';
 

apps/docs/src/content/docs/deployment/cloudflare-pages.mdx

@@ -16,7 +16,7 @@ All landing pages and static sites are deployed to **Cloudflare Pages** using Di
 | Chat | `@chat/landing` | `chat-landing` | chat.mana.how |
 | Picture | `@picture/landing` | `picture-landing` | picture.mana.how |
 | Manacore | `@manacore/landing` | `manacore-landing` | mana.how |
-| ManaDeck | `@manadeck/landing` | `manadeck-landing` | manadeck.mana.how |
+| Cards | `@cards/landing` | `cards-landing` | cards.mana.how |
 | Zitare | `@zitare/landing` | `zitare-landing` | zitare.mana.how |
 | Docs | `@manacore/docs` | `manacore-docs` | docs.mana.how |
 

apps/docs/src/content/docs/development/local-development.mdx

@@ -86,7 +86,7 @@ This is useful when setting up a fresh environment or after pulling new schema c
 
 On first `pnpm docker:up`, the PostgreSQL container runs `docker/init-db/01-create-databases.sql` which creates all databases:
 
-- manacore, chat, zitare, contacts, calendar, clock, todo, manadeck
+- manacore, chat, zitare, contacts, calendar, clock, todo, cards
 - storage, mail, moodlit, finance, inventory, techbase, voxel_lava, figgos
 
 ### Setup Script
@@ -105,13 +105,13 @@ Some apps don't have backends or don't use Drizzle:
 | App | Reason |
 |-----|--------|
 | manacore | No backend (uses other services) |
-| manadeck | Backend exists but no db:push |
+| cards | Backend exists but no db:push |
 
 For these, use the regular dev commands:
 
 ```bash
 pnpm dev:manacore:web
-pnpm dev:manadeck:app
+pnpm dev:cards:app
 ```
 
 ## Troubleshooting

apps/docs/src/content/docs/getting-started/introduction.mdx

@@ -43,7 +43,7 @@ Manacore is designed to streamline the development of multiple interconnected ap
 | **Chat** | AI chat application with multiple models | Stable |
 | **Picture** | AI image generation | Stable |
 | **Zitare** | Daily inspiration quotes | Stable |
-| **ManaDeck** | Card/deck management | Beta |
+| **Cards** | Card/deck management | Beta |
 | **Contacts** | Contact management | Beta |
 | **Calendar** | Calendar & scheduling | Alpha |
 | **Matrix** | Matrix chat client | Alpha |

apps/docs/src/content/docs/index.mdx

@@ -35,7 +35,7 @@ pnpm dev:chat:full
     Central auth service with EdDSA JWT tokens across all apps.
   </Card>
   <Card title="Multiple Apps" icon="puzzle">
-    Chat, Picture, Zitare, ManaDeck, and more - all sharing infrastructure.
+    Chat, Picture, Zitare, Cards, and more - all sharing infrastructure.
   </Card>
   <Card title="Modern Stack" icon="rocket">
     SvelteKit, Expo, NestJS, Drizzle ORM, Tailwind CSS.
@@ -52,6 +52,6 @@ pnpm dev:chat:full
 | **Chat** | AI chat with multiple models |
 | **Picture** | AI image generation |
 | **Zitare** | Daily inspiration quotes |
-| **ManaDeck** | Card & deck management |
+| **Cards** | Card & deck management |
 | **Contacts** | Contact management |
 | **Calendar** | Calendar & scheduling |

apps/docs/src/content/docs/projects/index.mdx

@@ -36,12 +36,12 @@ Manacore contains multiple interconnected applications, each serving a specific
     [View Details](/projects/zitare)
   </Card>
 
-  <Card title="ManaDeck" icon="card">
+  <Card title="Cards" icon="card">
     Card & deck management
 
     **Stack**: NestJS, SvelteKit, Expo
 
-    [View Details](/projects/manadeck)
+    [View Details](/projects/cards)
   </Card>
 
   <Card title="Contacts" icon="person">
@@ -68,7 +68,7 @@ Manacore contains multiple interconnected applications, each serving a specific
 | Chat | 3002 | 5173 | Yes | Stable |
 | Picture | 3006 | 5175 | Yes | Stable |
 | Zitare | 3007 | 5177 | Yes | Stable |
-| ManaDeck | 3009 | 5178 | Yes | Beta |
+| Cards | 3009 | 5178 | Yes | Beta |
 | Contacts | 3015 | 5184 | No | Beta |
 | Calendar | 3014 | 5179 | No | Alpha |
 | Clock | 3017 | 5187 | No | Alpha |