style: fix Biome dead-code warnings from oRPC migration (CI lint gate)

services/backend/src/http/app.ts

@@ -1,5 +1,5 @@
-import { RPCHandler } from "@orpc/server/node";
 import { onError } from "@orpc/server";
+import { RPCHandler } from "@orpc/server/node";
 import express, {
   type Express,
   type NextFunction,
@@ -9,8 +9,8 @@ import express, {
 import helmet from "helmet";
 import { createChildLogger } from "@/shared/logger/index";
 import { createHealthRouter } from "../modules/health/index.js";
-import { errorHandler } from "../shared/middlewares/index.js";
 import { appRouter } from "../orpc/router";
+import { errorHandler } from "../shared/middlewares/index.js";
 
 // Auth removed — dashboard is public.
 // All data APIs (dashboard, messages, moderation, media, voice, recordings,

services/backend/src/http/server.ts

@@ -1,8 +1,8 @@
 import { createServer, type Server } from "node:http";
 import { createChildLogger } from "@/shared/logger/index";
+import { createORPCWebSocketServer } from "../orpc/ws.js";
 import { config } from "../shared/config/index.js";
 import { initializeDatabase } from "../shared/database/index.js";
-import { createORPCWebSocketServer } from "../orpc/ws.js";
 import { startRedisBridge } from "../ws/redis-bridge.js";
 import { createWebSocketServer } from "../ws/server.js";
 import { createHttpApp } from "./app.js";

services/backend/src/modules/chatbot/chatbot.repository.ts

@@ -1,6 +1,6 @@
-import { and, desc, eq, type SQL, sql } from "drizzle-orm";
+import { desc, eq } from "drizzle-orm";
 import { getDatabase } from "../../shared/database/index.js";
-import { pgChatbotMessagesTable, pgMessagesTable } from "../../shared/index.js";
+import { pgChatbotMessagesTable } from "../../shared/index.js";
 import { createChildLogger } from "../../shared/logger/index.js";
 
 const logger = createChildLogger("chatbot.repository");

services/backend/src/modules/chatbot/chatbot.tools.ts

@@ -9,7 +9,6 @@ import {
   pgUserReputationsTable,
   pgVoiceRecordingsTable,
 } from "../../shared/index.js";
-import { tools } from "./chatbot.toolDefs.js";
 
 /**
  * Executor for the chatbot's server-watcher tools. The tool *definitions*
@@ -430,7 +429,7 @@ async function moderationTimeline(
   return JSON.stringify(rows);
 }
 
-async function corrections(guildId?: string, limit = 10): Promise<string> {
+async function corrections(_guildId?: string, limit = 10): Promise<string> {
   const db = getDatabase();
   const rows = await db
     .select({

services/backend/src/orpc/router.ts

@@ -5,8 +5,17 @@ import { chatRequestSchema } from "../modules/chatbot/chatbot.schema";
 import { chatbotService } from "../modules/chatbot/chatbot.service";
 // ── Service imports ──────────────────────────────────────────────
 import { dashboardService } from "../modules/dashboard/dashboard.service";
-import { mediaLoopSchema, mediaQueueSchema } from "../modules/media/media.schema";
-import { getStatus, queue, setLoop, skip, stop } from "../modules/media/media.service";
+import {
+  mediaLoopSchema,
+  mediaQueueSchema,
+} from "../modules/media/media.schema";
+import {
+  getStatus,
+  queue,
+  setLoop,
+  skip,
+  stop,
+} from "../modules/media/media.service";
 import { messageQuerySchema } from "../modules/messages/messages.schema";
 import { messagesService } from "../modules/messages/messages.service";
 import { moderationService } from "../modules/moderation/moderation.service";
@@ -27,7 +36,9 @@ import { publishCommandNoReply } from "../shared/redis/index";
 const dashboardRouter = {
   stats: os.handler(() => dashboardService.getStats()),
   activity: os
-    .input(z.object({ days: z.coerce.number().int().min(1).max(90).default(14) }))
+    .input(
+      z.object({ days: z.coerce.number().int().min(1).max(90).default(14) }),
+    )
     .handler(({ input }) => dashboardService.getActivity(input.days)),
   users: os
     .input(
@@ -152,9 +163,7 @@ const moderationRouter = {
 // ── Media ────────────────────────────────────────────────────────
 const mediaRouter = {
   status: os.handler(() => getStatus()),
-  queue: os
-    .input(mediaQueueSchema)
-    .handler(async ({ input }) => {
+  queue: os.input(mediaQueueSchema).handler(async ({ input }) => {
     await queue(input.source, input.mode);
     return getStatus();
   }),
@@ -166,9 +175,7 @@ const mediaRouter = {
     await stop();
     return getStatus();
   }),
-  loop: os
-    .input(mediaLoopSchema)
-    .handler(async ({ input }) => {
+  loop: os.input(mediaLoopSchema).handler(async ({ input }) => {
     await setLoop(input.loop);
     return getStatus();
   }),
@@ -220,9 +227,7 @@ const recordingsRouter = {
         cursor: input.cursor,
       }),
     ),
-  delete: os
-    .input(z.object({ id: z.string() }))
-    .handler(async ({ input }) => {
+  delete: os.input(z.object({ id: z.string() })).handler(async ({ input }) => {
     await recordingsService.deleteById(input.id);
     return { ok: true };
   }),

services/backend/src/orpc/ws.ts

@@ -1,7 +1,7 @@
 import type { IncomingMessage, Server } from "node:http";
 import type { Duplex } from "node:stream";
-import { RPCHandler } from "@orpc/server/ws";
 import { onError } from "@orpc/server";
+import { RPCHandler } from "@orpc/server/ws";
 import { WebSocketServer } from "ws";
 import { createChildLogger } from "@/shared/logger/index";
 import { appRouter } from "./router";
@@ -24,7 +24,9 @@ const logger = createChildLogger("orpc.ws");
  */
 export function createORPCWebSocketServer(server: Server): WebSocketServer {
   const handler = new RPCHandler(appRouter, {
-    interceptors: [onError((error) => logger.error({ error }, "oRPC WS error"))],
+    interceptors: [
+      onError((error) => logger.error({ error }, "oRPC WS error")),
+    ],
   });
 
   const wss = new WebSocketServer({ noServer: true, perMessageDeflate: false });

services/backend/tests/chatbot-tools.test.ts

@@ -30,7 +30,7 @@ describe("chatbot tool definitions", () => {
     ] as const) {
       const tool = byName.get(name);
       expect(tool, `missing tool ${name}`).toBeDefined();
-      expect(tool!.function.parameters.required).toContain(required);
+      expect(tool?.function.parameters.required).toContain(required);
     }
   });