fix(web): harden typed SPA chat lifecycle

Co-Authored-By: Claude Haiku 4.5 <[email protected]>

apps/web/src/lib/chat-contract.ts

@@ -1,17 +1,7 @@
 // Centralizes the type-only import of the shared `/chat` Socket.IO contract from
-// @mosaicstack/types' source.
-//
-// `apps/web` does not declare `@mosaicstack/types` as a package dependency (P3 scope
-// forbids editing package manifests/lockfiles), so these are type-only imports
-// resolved directly against the package source. `import type` is erased at compile
-// time, so no runtime dependency is introduced — this only reuses the exact payload
-// shapes instead of redeclaring them.
-//
-// This deliberately imports the narrow `chat/events` and `commands/index` entry
-// points rather than the package's full `src/index` barrel: the barrel also re-exports
-// class-validator/class-transformer decorated DTOs (chat.dto.ts, reflection.dto.ts,
-// connector-lease.dto.ts) that require compiler options apps/web's tsconfig does not
-// set, which breaks `tsc --noEmit` here even though only types are imported.
+// the public `@mosaicstack/types` package. `import type` is erased at compile
+// time, so this introduces no runtime dependency — it only reuses the exact
+// payload shapes instead of redeclaring them.
 import type { Socket } from 'socket.io-client';
 import type {
   AbortPayload,
@@ -21,6 +11,9 @@ import type {
   AgentThinkingPayload,
   ChatMessagePayload,
   ClientToServerEvents,
+  CommandDef,
+  CommandManifest,
+  CommandManifestPayload,
   ErrorPayload,
   MessageAckPayload,
   RoutingDecisionInfo,
@@ -28,19 +21,14 @@ import type {
   SessionInfoPayload,
   SessionUsagePayload,
   SetThinkingPayload,
-  ToolEndPayload,
-  ToolStartPayload,
-} from '../../../../packages/types/src/chat/events';
-import type {
-  CommandDef,
-  CommandManifest,
-  CommandManifestPayload,
   SkillCommandDef,
   SlashCommandApprovalResultPayload,
   SlashCommandPayload,
   SlashCommandResultPayload,
   SystemReloadPayload,
-} from '../../../../packages/types/src/commands/index';
+  ToolEndPayload,
+  ToolStartPayload,
+} from '@mosaicstack/types';
 
 export type {
   AbortPayload,