chore(deps): upgrade workspace to TypeScript 6

.agents/skills/klicker-data-model/SKILL.md

@@ -18,6 +18,8 @@ pnpm run build               # 4. regenerate Prisma client + dependent packages
 
 Then, if the change is API-visible: update Pothos types/resolvers (`klicker-graphql-api`) — the Pothos Prisma plugin picks up new fields, but object types expose them explicitly.
 
+Run Prisma client generation only through `pnpm --filter @klicker-uzh/prisma generate` (or a build that calls it). The package script owns the TypeScript 6 generated-namespace patch; direct `prisma generate` bypasses it. The package's canonical `check` includes the patch invariant tests. If generation fails at the patch, run `pnpm --filter @klicker-uzh/prisma test:patch-namespace` and inspect the new generated declarations instead of weakening the exact-cardinality guard.
+
 Provenance: steps 2 requires a database; on a machine without one running, write the schema change and STOP — hand the migration step to the user rather than faking a migration file.
 
 ## Rules that prevent real incidents

.agents/skills/klicker-testing-verification/SKILL.md

@@ -39,6 +39,8 @@ Every item, in order; paste evidence (command + tail of output, screenshots) int
 5. **i18n pair check** if UI text changed: the key exists in BOTH `packages/i18n/messages/de.ts` and `en.ts`.
 6. **Browser evidence for UI changes** — open the changed pages with `npx agent-browser` (never bare `agent-browser`), log in with delegated/test credentials (AGENTS.md), capture before/after screenshots. "The logic looks correct" does not count.
 
+For TypeScript or other compiler/toolchain upgrades, root `check:all` includes the Cypress and Playwright compilers through their package `check` scripts. Also run `pnpm run build:test` and the Docs production build; those surfaces remain outside the root check. Use direct package `tsc --noEmit -p tsconfig.json` commands only to isolate a Cypress or Playwright failure.
+
 ## Reporting
 
 State what you ran, what passed, what you did NOT run and why (e.g. "no Infisical access — e2e left to CI"). An honest gap beats a fabricated green.

.syncpackrc.mjs

@@ -48,6 +48,13 @@ export default {
     },
   ],
   versionGroups: [
+    {
+      // Office Add-in compiler/tooling is owned by a separate upgrade PR.
+      label: 'Office Add-in TypeScript can differ from the workspace',
+      dependencies: ['typescript'],
+      packages: ['@klicker-uzh/office-addin'],
+      isIgnored: true,
+    },
     {
       // FIXME: update when consistent versions are possible (e.g., do other remark updates in apps)
       label: 'remark-math can be inconsistent between docs and apps',

apps/auth/package.json

@@ -47,7 +47,7 @@
     "tailwindcss": "~4.1.11",
     "tailwindcss-animate": "~1.0.7",
     "tw-animate-css": "~1.3.4",
-    "typescript": "~5.6.3"
+    "typescript": "~6.0.3"
   },
   "scripts": {
     "build": "next build --webpack",

apps/auth/tsconfig.json

@@ -21,7 +21,6 @@
     "jsx": "react-jsx",
     "isolatedModules": true,
     // Path Mapping
-    "baseUrl": ".",
     "paths": {
       "@/*": ["./src/*"]
     },

apps/backend-docker/package.json

@@ -66,7 +66,7 @@
     "rollup": "~4.34.9",
     "source-map-support": "~0.5.21",
     "tsx": "~4.19.4",
-    "typescript": "~5.6.3"
+    "typescript": "~6.0.3"
   },
   "scripts": {
     "build": "cross-env NODE_ENV=production run-s --npm-path pnpm build:ts",

apps/backend-docker/tsconfig.json

@@ -1,7 +1,6 @@
 {
   "include": ["./src/**/*", "./scripts/**/*", "./instrumented/**/*"],
   "compilerOptions": {
-    "baseUrl": ".",
     /* Base Options: */
     "esModuleInterop": true,
     "skipLibCheck": true,

apps/chat/package.json

@@ -66,7 +66,7 @@
     "eslint": "~9.30.1",
     "eslint-config-next": "~16.2.9",
     "tailwindcss": "~4.1.11",
-    "typescript": "~5.6.3",
+    "typescript": "~6.0.3",
     "vitest": "~3.2.4"
   },
   "scripts": {

apps/chat/src/app/RuntimeProvider.tsx

@@ -1,19 +1,19 @@
 'use client'
 
+import { useChatResponse } from '@/src/hooks/useChatResponse'
+import { useThreadManagement } from '@/src/hooks/useThreadManagement'
+import {
+  useChatStore,
+  type ExtendedThreadMessageLike,
+} from '@/src/stores/chatStore'
+import { useSettingsStore } from '@/src/stores/settingsStore'
 import {
   AssistantRuntimeProvider,
   useExternalStoreRuntime,
   type ThreadMessageLike,
 } from '@assistant-ui/react'
 import { useParams, useRouter, useSearchParams } from 'next/navigation'
 import { useCallback, useEffect, useRef, useState } from 'react'
-import { useChatResponse } from 'src/hooks/useChatResponse'
-import { useThreadManagement } from 'src/hooks/useThreadManagement'
-import {
-  useChatStore,
-  type ExtendedThreadMessageLike,
-} from 'src/stores/chatStore'
-import { useSettingsStore } from 'src/stores/settingsStore'
 import { useChatUi } from '../components/chat-ui-context'
 import { imageAttachmentAdapter } from '../lib/attachments/imageAttachmentAdapter'
 

apps/chat/src/app/api/chatbots/[chatbotId]/chat/route.ts

@@ -1,3 +1,5 @@
+import { DEFAULT_PROMPT } from '@/src/lib/config/prompts'
+import { type ReasoningEffort } from '@/src/lib/config/reasoning'
 import { withChatbotAuth } from '@/src/lib/server/apiGuards'
 import {
   getAllowedReasoningEffortsForModel,
@@ -7,10 +9,13 @@ import {
 } from '@/src/lib/server/chatModelRegistry'
 import { ensureImagePreviewBase64 } from '@/src/lib/server/imagePreview'
 import { getOpenAIResponsesStore } from '@/src/lib/server/openaiResponsesOptions'
+import { CreditsService } from '@/src/services/credits'
+import { DisclaimersService } from '@/src/services/disclaimers'
 import {
   getAggregatedMCPTools,
   type MCPServerWithConfig,
 } from '@/src/services/mcpClients'
+import { ThreadService } from '@/src/services/threads'
 import { createOpenAI } from '@ai-sdk/openai'
 import { prisma } from '@klicker-uzh/prisma'
 import { Chatbot } from '@klicker-uzh/prisma/client'
@@ -24,11 +29,6 @@ import {
 } from 'ai'
 import { createHash, randomUUID } from 'crypto'
 import { NextRequest, NextResponse } from 'next/server'
-import { DEFAULT_PROMPT } from 'src/lib/config/prompts'
-import { type ReasoningEffort } from 'src/lib/config/reasoning'
-import { CreditsService } from 'src/services/credits'
-import { DisclaimersService } from 'src/services/disclaimers'
-import { ThreadService } from 'src/services/threads'
 import { z } from 'zod'
 
 export const runtime = 'nodejs'

apps/chat/src/app/api/chatbots/[chatbotId]/threads/[threadId]/route.ts

@@ -1,6 +1,6 @@
 import { withChatbotAuth } from '@/src/lib/server/apiGuards'
+import { ThreadService } from '@/src/services/threads'
 import { NextRequest, NextResponse } from 'next/server'
-import { ThreadService } from 'src/services/threads'
 
 /**
  * Deletes a specific thread and all its associated messages permanently for the authenticated participant.

apps/chat/src/app/api/chatbots/[chatbotId]/threads/[threadId]/title/route.ts

@@ -1,6 +1,6 @@
 import { withChatbotAuth } from '@/src/lib/server/apiGuards'
+import { ThreadService } from '@/src/services/threads'
 import { NextRequest, NextResponse } from 'next/server'
-import { ThreadService } from 'src/services/threads'
 
 /**
  * Updates the title of a specific thread for the authenticated participant.

apps/chat/src/app/api/chatbots/[chatbotId]/threads/route.ts

@@ -1,6 +1,6 @@
 import { withChatbotAuth } from '@/src/lib/server/apiGuards'
+import { ThreadService } from '@/src/services/threads'
 import { NextRequest, NextResponse } from 'next/server'
-import { ThreadService } from 'src/services/threads'
 
 /**
  * Retrieves all chat threads for the authenticated participant ordered by most recently updated.

apps/chat/tsconfig.json

@@ -20,8 +20,7 @@
     ],
     "paths": {
       "@/*": ["./*"]
-    },
-    "baseUrl": "."
+    }
   },
   "include": [
     "next-env.d.ts",

apps/docs/package.json

@@ -41,7 +41,7 @@
     "remark-math": "~6.0.0",
     "tailwind-merge": "~3.3.1",
     "tailwindcss": "~4.1.11",
-    "typescript": "~5.6.3"
+    "typescript": "~6.0.3"
   },
   "scripts": {
     "build:docs": "docusaurus build",

apps/docs/tsconfig.json

@@ -1,6 +1,7 @@
 {
   "extends": "@docusaurus/tsconfig",
   "compilerOptions": {
-    "baseUrl": "."
+    "baseUrl": ".",
+    "ignoreDeprecations": "6.0"
   }
 }

apps/frontend-control/package.json

@@ -57,7 +57,7 @@
     "swc-loader": "~0.2.7",
     "tailwindcss": "~4.1.11",
     "tw-animate-css": "~1.3.4",
-    "typescript": "~5.6.3"
+    "typescript": "~6.0.3"
   },
   "scripts": {
     "build": "next build --webpack",

apps/frontend-control/tsconfig.json

@@ -1,6 +1,6 @@
 {
   "compilerOptions": {
-    "target": "es5",
+    "target": "ES2015",
     "lib": ["dom", "dom.iterable", "esnext"],
     "allowJs": true,
     "skipLibCheck": true,
@@ -15,13 +15,12 @@
     "isolatedModules": true,
     "jsx": "react-jsx",
     "incremental": true,
-    "baseUrl": ".",
     "paths": {
-      "~/*": ["src/*"],
-      "@components/*": ["src/components/*"],
-      "@lib/*": ["src/lib/*"],
-      "@pages/*": ["src/pages/*"],
-      "@type/*": ["src/types/*"]
+      "~/*": ["./src/*"],
+      "@components/*": ["./src/components/*"],
+      "@lib/*": ["./src/lib/*"],
+      "@pages/*": ["./src/pages/*"],
+      "@type/*": ["./src/types/*"]
     }
   },
   "include": [

apps/frontend-manage/package.json

@@ -86,7 +86,7 @@
     "tailwindcss": "~4.1.11",
     "tailwindcss-animate": "~1.0.7",
     "tw-animate-css": "~1.3.4",
-    "typescript": "~5.6.3"
+    "typescript": "~6.0.3"
   },
   "scripts": {
     "build": "next build --webpack",

apps/frontend-manage/tsconfig.json

@@ -1,6 +1,6 @@
 {
   "compilerOptions": {
-    "target": "es5",
+    "target": "ES2015",
     "lib": ["dom", "dom.iterable", "esnext"],
     "allowJs": true,
     "skipLibCheck": true,
@@ -15,13 +15,13 @@
     "isolatedModules": true,
     "jsx": "react-jsx",
     "incremental": true,
-    "baseUrl": ".",
     "paths": {
-      "~/*": ["src/*"],
-      "@components/*": ["src/components/*"],
-      "@lib/*": ["src/lib/*"],
-      "@pages/*": ["src/pages/*"],
-      "@type/*": ["src/types/*"]
+      "~/*": ["./src/*"],
+      "@components/*": ["./src/components/*"],
+      "@lib/*": ["./src/lib/*"],
+      "@pages/*": ["./src/pages/*"],
+      "@type/*": ["./src/types/*"],
+      "public/*": ["./public/*"]
     }
   },
   "include": [

apps/frontend-pwa/package.json

@@ -73,7 +73,7 @@
     "tailwindcss": "~4.1.11",
     "tsx": "~4.19.4",
     "tw-animate-css": "~1.3.4",
-    "typescript": "~5.6.3"
+    "typescript": "~6.0.3"
   },
   "scripts": {
     "build": "next build --webpack",

apps/frontend-pwa/src/pages/createAccount.tsx

@@ -7,13 +7,13 @@ import { useRouter } from 'next/router'
 import nookies from 'nookies'
 
 import { useMutation } from '@apollo/client'
+import Layout from '@components/Layout'
+import CreateAccountForm from '@components/forms/CreateAccountForm'
 import { CreateParticipantAccountDocument } from '@klicker-uzh/graphql/dist/ops'
+import { addApolloState, initializeApollo } from '@lib/apollo'
 import getParticipantToken from '@lib/getParticipantToken'
 import useParticipantToken from '@lib/useParticipantToken'
 import bodyParser from 'body-parser'
-import Layout from 'src/components/Layout'
-import CreateAccountForm from 'src/components/forms/CreateAccountForm'
-import { addApolloState, initializeApollo } from 'src/lib/apollo'
 
 interface Props {
   signedLtiData?: string

apps/frontend-pwa/tsconfig.json

@@ -1,6 +1,6 @@
 {
   "compilerOptions": {
-    "target": "es5",
+    "target": "ES2015",
     "lib": ["dom", "dom.iterable", "esnext"],
     "allowJs": true,
     "skipLibCheck": true,
@@ -15,13 +15,13 @@
     "isolatedModules": true,
     "jsx": "react-jsx",
     "incremental": true,
-    "baseUrl": ".",
     "paths": {
-      "~/*": ["src/*"],
-      "@components/*": ["src/components/*"],
-      "@lib/*": ["src/lib/*"],
-      "@pages/*": ["src/pages/*"],
-      "@type/*": ["src/types/*"]
+      "~/*": ["./src/*"],
+      "@components/*": ["./src/components/*"],
+      "@lib/*": ["./src/lib/*"],
+      "@pages/*": ["./src/pages/*"],
+      "@type/*": ["./src/types/*"],
+      "public/*": ["./public/*"]
     }
   },
   "include": [

apps/hatchet-worker-general/package.json

@@ -25,7 +25,7 @@
     "@types/node": "^24.10.1",
     "rollup": "~4.34.9",
     "tsx": "~4.19.4",
-    "typescript": "~5.6.3"
+    "typescript": "~6.0.3"
   },
   "scripts": {
     "build": "run-s --npm-path pnpm build:ts",

apps/hatchet-worker-general/tsconfig.json

@@ -1,7 +1,6 @@
 {
   "include": ["./src/**/*", "./scripts/**/*"],
   "compilerOptions": {
-    "baseUrl": ".",
     /* Base Options: */
     "esModuleInterop": true,
     "skipLibCheck": true,

apps/hatchet-worker-response-processor/package.json

@@ -22,7 +22,7 @@
     "@types/node": "^24.10.1",
     "rollup": "~4.34.9",
     "tsx": "~4.19.4",
-    "typescript": "~5.6.3"
+    "typescript": "~6.0.3"
   },
   "scripts": {
     "build": "run-s --npm-path pnpm build:ts",

apps/hatchet-worker-response-processor/tsconfig.json

@@ -1,7 +1,6 @@
 {
   "include": ["./src/**/*", "./scripts/**/*"],
   "compilerOptions": {
-    "baseUrl": ".",
     /* Base Options: */
     "esModuleInterop": true,
     "skipLibCheck": true,

apps/lti/package.json

@@ -23,7 +23,7 @@
     "npm-run-all": "~4.1.5",
     "rollup": "~4.34.9",
     "rollup-plugin-copy": "~3.5.0",
-    "typescript": "~5.6.3"
+    "typescript": "~6.0.3"
   },
   "scripts": {
     "build": "cross-env NODE_ENV=production pnpm run build:ts",

apps/olat-api/package.json

@@ -32,7 +32,7 @@
     "rollup": "~4.34.9",
     "supertest": "~7.1.1",
     "tsx": "~4.19.4",
-    "typescript": "~5.6.3",
+    "typescript": "~6.0.3",
     "vitest": "~3.2.4"
   },
   "scripts": {

apps/olat-api/tsconfig.json

@@ -1,7 +1,6 @@
 {
   "include": ["**/**/*"],
   "compilerOptions": {
-    "baseUrl": ".",
     /* Base Options: */
     "esModuleInterop": true,
     "skipLibCheck": true,

apps/response-api/package.json

@@ -21,7 +21,7 @@
     "@types/node": "^24.10.1",
     "rollup": "~4.34.9",
     "tsx": "~4.19.4",
-    "typescript": "~5.6.3"
+    "typescript": "~6.0.3"
   },
   "scripts": {
     "build": "run-s --npm-path pnpm build:ts",

apps/response-api/tsconfig.json

@@ -1,7 +1,6 @@
 {
   "include": ["./src/**/*", "./scripts/**/*"],
   "compilerOptions": {
-    "baseUrl": ".",
     /* Base Options: */
     "esModuleInterop": true,
     "skipLibCheck": true,