feat: add web backend — Express REST API, WebSocket, full wiring in entry point

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

src/web/api/bot.ts

@@ -0,0 +1,88 @@
+import { Router } from "express";
+import type { BotManager } from "../../bot/manager.js";
+import type { BotConfig } from "../../data/config.js";
+import type { Logger } from "../../logger.js";
+
+export function createBotRouter(
+  botManager: BotManager,
+  config: BotConfig,
+  logger: Logger
+): Router {
+  const router = Router();
+
+  router.get("/", (_req, res) => {
+    const bots = botManager.getAllBots().map((b) => b.getStatus());
+    res.json({ bots });
+  });
+
+  router.get("/:id", (req, res) => {
+    const bot = botManager.getBot(req.params.id);
+    if (!bot) {
+      res.status(404).json({ error: "Bot not found" });
+      return;
+    }
+    res.json(bot.getStatus());
+  });
+
+  router.post("/", async (req, res) => {
+    try {
+      const {
+        name,
+        serverAddress,
+        serverPort,
+        nickname,
+        defaultChannel,
+        channelPassword,
+        autoStart,
+      } = req.body;
+      if (!name || !serverAddress || !nickname) {
+        res
+          .status(400)
+          .json({ error: "name, serverAddress, and nickname are required" });
+        return;
+      }
+      const bot = await botManager.createBot({
+        name,
+        serverAddress,
+        serverPort: serverPort ?? 9987,
+        nickname,
+        defaultChannel,
+        channelPassword,
+        autoStart: autoStart ?? false,
+      });
+      res.status(201).json(bot.getStatus());
+    } catch (err) {
+      logger.error({ err }, "Failed to create bot");
+      res.status(500).json({ error: (err as Error).message });
+    }
+  });
+
+  router.delete("/:id", async (req, res) => {
+    try {
+      await botManager.removeBot(req.params.id);
+      res.json({ success: true });
+    } catch (err) {
+      res.status(500).json({ error: (err as Error).message });
+    }
+  });
+
+  router.post("/:id/start", async (req, res) => {
+    try {
+      await botManager.startBot(req.params.id);
+      res.json({ success: true });
+    } catch (err) {
+      res.status(500).json({ error: (err as Error).message });
+    }
+  });
+
+  router.post("/:id/stop", (req, res) => {
+    try {
+      botManager.stopBot(req.params.id);
+      res.json({ success: true });
+    } catch (err) {
+      res.status(500).json({ error: (err as Error).message });
+    }
+  });
+
+  return router;
+}