feat: CLI Integration Suite for issue #2016

- Add tool-detector.ts (6 CLI tools: claude, codex, opencode, cline, kilocode, continue)
- Add config-generator/ factory + 6 generators (JSON + YAML)
- Add doctor/checks.ts for CLI tool health checks
- Add log-streamer.ts for usage log streaming
- Add @omniroute/opencode-provider npm package
- Add 5 CLI commands: config, status, logs, update, provider
- Add 3 API routes: config, detect, apply
- Update bin/omniroute.mjs, bin/cli/index.mjs, package.json
- Update docs: SETUP_GUIDE.md, CLI-TOOLS.md
- All tests pass (4302/4326, 24 pre-existing failures unchanged)

src/app/api/cli-tools/detect/route.ts

@@ -0,0 +1,28 @@
+import { NextResponse } from "next/server";
+import { requireCliToolsAuth } from "@/lib/api/requireCliToolsAuth";
+import { detectAllTools, detectTool } from "@/lib/cli-helper/tool-detector";
+
+// GET /api/cli-tools/detect - Detect all installed CLI tools
+export async function GET(request: Request) {
+  const authError = await requireCliToolsAuth(request);
+  if (authError) return authError;
+
+  const { searchParams } = new URL(request.url);
+  const toolId = searchParams.get("tool");
+
+  try {
+    if (toolId) {
+      const tool = await detectTool(toolId);
+      if (!tool) {
+        return NextResponse.json({ error: `Unknown tool: ${toolId}` }, { status: 400 });
+      }
+      return NextResponse.json(tool);
+    }
+
+    const tools = await detectAllTools();
+    return NextResponse.json({ tools });
+  } catch (error) {
+    console.log("Error detecting tools:", error);
+    return NextResponse.json({ error: "Failed to detect tools" }, { status: 500 });
+  }
+}