feat: add OpenTelemetry device log capture pipeline

- ClickHouse `logs` table (migration 13) with OTel columns, bloom filter indices
- Zod validation schema for log payloads (severity, body, attributes, trace context)
- Redis-backed LogBuffer with micro-batching into ClickHouse
- POST /logs API endpoint with client auth, geo + UA enrichment
- BullMQ logs queue + worker job
- cron flushLogs every 10s wired into existing cron system
- SDK captureLog(severity, body, properties) with client-side batching

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

apps/api/src/controllers/logs.controller.ts

@@ -0,0 +1,68 @@
+import { parseUserAgent } from '@openpanel/common/server';
+import { getSalts } from '@openpanel/db';
+import { getGeoLocation } from '@openpanel/geo';
+import { type LogsQueuePayload, logsQueue } from '@openpanel/queue';
+import { type ILogBatchPayload, zLogBatchPayload } from '@openpanel/validation';
+import type { FastifyReply, FastifyRequest } from 'fastify';
+import { getDeviceId } from '@/utils/ids';
+import { getStringHeaders } from './track.controller';
+
+export async function handler(
+  request: FastifyRequest<{ Body: ILogBatchPayload }>,
+  reply: FastifyReply,
+) {
+  const projectId = request.client?.projectId;
+  if (!projectId) {
+    return reply.status(400).send({ status: 400, error: 'Missing projectId' });
+  }
+
+  const validationResult = zLogBatchPayload.safeParse(request.body);
+  if (!validationResult.success) {
+    return reply.status(400).send({
+      status: 400,
+      error: 'Bad Request',
+      message: 'Validation failed',
+      errors: validationResult.error.errors,
+    });
+  }
+
+  const { logs } = validationResult.data;
+
+  const ip = request.clientIp;
+  const ua = request.headers['user-agent'] ?? 'unknown/1.0';
+  const headers = getStringHeaders(request.headers);
+  const receivedAt = new Date().toISOString();
+
+  const [geo, salts] = await Promise.all([getGeoLocation(ip), getSalts()]);
+  const { deviceId, sessionId } = await getDeviceId({ projectId, ip, ua, salts });
+  const uaInfo = parseUserAgent(ua, undefined);
+
+  const jobs: LogsQueuePayload[] = logs.map((log) => ({
+    type: 'incomingLog' as const,
+    payload: {
+      projectId,
+      log: {
+        ...log,
+        timestamp: log.timestamp ?? receivedAt,
+      },
+      uaInfo,
+      geo: {
+        country: geo.country,
+        city: geo.city,
+        region: geo.region,
+      },
+      headers,
+      deviceId,
+      sessionId,
+    },
+  }));
+
+  await logsQueue.addBulk(
+    jobs.map((job) => ({
+      name: 'incomingLog',
+      data: job,
+    })),
+  );
+
+  return reply.status(200).send({ ok: true, count: logs.length });
+}