chore: clear low-risk lint warnings

src/db/canonical-role-metadata.ts

@@ -20,7 +20,7 @@ interface RequiredRoleMetadataInput {
   fallbackAgentType?: AgentType | null;
 }
 
-interface OptionalRoleMetadataInput extends RequiredRoleMetadataInput {}
+type OptionalRoleMetadataInput = RequiredRoleMetadataInput;
 
 function resolveFilledRequiredAgentType(
   input: RequiredRoleMetadataInput,

src/db/paired-state.ts

@@ -20,7 +20,6 @@ import {
 import {
   AgentType,
   PairedProject,
-  PairedRoomRole,
   PairedTask,
   PairedTaskStatus,
   PairedTurnReservationIntentKind,

src/db/paired-turn-provenance-schema.ts

@@ -1,7 +1,7 @@
 import { Database } from 'bun:sqlite';
 
 import { buildPairedTurnAttemptId } from './paired-turn-attempts.js';
-import { tableHasColumn, tryExecMigration } from './migrations/helpers.js';
+import { tableHasColumn } from './migrations/helpers.js';
 
 // Paired-turn provenance rebuild helpers extracted from the legacy schema
 // bundle. These remain runtime helpers because v10 replays them during

src/db/room-registration.ts

@@ -115,7 +115,7 @@ function getStoredRoomRoleOverrideRows(
     agent_config_json: string | null;
     created_at: string;
     updated_at: string;
-  }> = [];
+  }>;
   try {
     rows = database
       .prepare(