feat: speaker-id service skeleton with ahserver + longtasks

- ahserver app on port 9095
- endpoints: status, enroll, identify, verify, compare
- ECAPA-TDNN model placeholder
- longtasks async task runner (enroll/identify/verify)
- direct cosine comparison endpoint

ah.py

@@ -0,0 +1,165 @@
+# -*- coding:utf-8 -*-
+"""
+Speaker ID Service — 声纹识别服务
+基于 SpeechBrain ECAPA-TDNN，ahserver + longtasks 异步模式。
+"""
+from ahserver.webapp import webapp
+from ahserver.serverenv import ServerEnv
+from ahserver.configuredServer import add_startup
+from longtasks.longtasks import LongTasks, schedule_once
+from appPublic.registerfunction import RegisterFunction
+from appPublic.log import debug, exception
+from traceback import format_exc
+import json
+
+
+# ── Task runner ────────────────────────────────────────────
+class SpeakerTasks(LongTasks):
+    async def process_task(self, payload, workid=None):
+        if isinstance(payload, str):
+            payload = json.loads(payload)
+        task_type = payload.get('task_type', '')
+        if task_type == 'enroll':
+            return await self._enroll(payload)
+        elif task_type == 'identify':
+            return await self._identify(payload)
+        elif task_type == 'verify':
+            return await self._verify(payload)
+        raise ValueError(f'Unknown task_type: {task_type}')
+
+    async def _enroll(self, payload):
+        audio = payload.get('audio', '')
+        speaker_id = payload.get('speaker_id', '')
+        # TODO: load model, compute embedding, store
+        return {'speaker_id': speaker_id, 'status': 'enrolled'}
+
+    async def _identify(self, payload):
+        audio = payload.get('audio', '')
+        # TODO: compute embedding, search DB
+        return {'matches': []}
+
+    async def _verify(self, payload):
+        audio1 = payload.get('audio1', '')
+        audio2 = payload.get('audio2', '')
+        # TODO: compute embeddings, compare
+        return {'match': False, 'score': 0.0}
+
+
+# ── API handlers ───────────────────────────────────────────
+async def status_handler(request, params_kw, *args, **kwargs):
+    return json.dumps({
+        "service": "speaker-id",
+        "model": "ECAPA-TDNN (spkrec-ecapa-voxceleb)",
+        "model_loaded": False,
+        "embedding_dim": 192,
+        "endpoints": [
+            "/api/status", "/api/enroll", "/api/identify",
+            "/api/verify", "/api/compare"
+        ]
+    }, indent=2, ensure_ascii=False)
+
+
+async def enroll_handler(request, params_kw, *args, **kwargs):
+    try:
+        env = request._run_ns
+        longtasks = env.longtasks
+        audio = params_kw.get('audio', '')
+        speaker_id = params_kw.get('speaker_id', '')
+        speaker_name = params_kw.get('speaker_name', '')
+        if not audio or not speaker_id:
+            return json.dumps({"error": "audio and speaker_id required"})
+        task_id = await longtasks.submit({
+            'task_type': 'enroll',
+            'audio': audio,
+            'speaker_id': speaker_id,
+            'speaker_name': speaker_name
+        })
+        return json.dumps({"status": "ACCEPTED", "task_id": task_id})
+    except Exception as e:
+        exception(f"enroll: {e}, {format_exc()}")
+        return json.dumps({"error": str(e)})
+
+
+async def identify_handler(request, params_kw, *args, **kwargs):
+    try:
+        env = request._run_ns
+        longtasks = env.longtasks
+        audio = params_kw.get('audio', '')
+        if not audio:
+            return json.dumps({"error": "audio required"})
+        task_id = await longtasks.submit({
+            'task_type': 'identify',
+            'audio': audio,
+            'threshold': float(params_kw.get('threshold', 0.7)),
+            'top_k': int(params_kw.get('top_k', 3))
+        })
+        return json.dumps({"status": "ACCEPTED", "task_id": task_id})
+    except Exception as e:
+        exception(f"identify: {e}, {format_exc()}")
+        return json.dumps({"error": str(e)})
+
+
+async def verify_handler(request, params_kw, *args, **kwargs):
+    try:
+        env = request._run_ns
+        longtasks = env.longtasks
+        audio1 = params_kw.get('audio1', '')
+        audio2 = params_kw.get('audio2', '')
+        if not audio1 or not audio2:
+            return json.dumps({"error": "audio1 and audio2 required"})
+        task_id = await longtasks.submit({
+            'task_type': 'verify',
+            'audio1': audio1,
+            'audio2': audio2
+        })
+        return json.dumps({"status": "ACCEPTED", "task_id": task_id})
+    except Exception as e:
+        exception(f"verify: {e}, {format_exc()}")
+        return json.dumps({"error": str(e)})
+
+
+async def compare_handler(request, params_kw, *args, **kwargs):
+    """直接比对两个声纹向量 (实时, 不走 longtasks)"""
+    emb1 = params_kw.get('embedding1', [])
+    emb2 = params_kw.get('embedding2', [])
+    if not emb1 or not emb2:
+        return json.dumps({"error": "embedding1 and embedding2 required"})
+    # Cosine similarity
+    import math
+    dot = sum(a * b for a, b in zip(emb1, emb2))
+    norm1 = math.sqrt(sum(a * a for a in emb1))
+    norm2 = math.sqrt(sum(b * b for b in emb2))
+    score = dot / (norm1 * norm2) if norm1 and norm2 else 0.0
+    return json.dumps({"status": "SUCCEEDED", "similarity": round(score, 6)})
+
+
+async def on_app_built(app):
+    env = ServerEnv()
+    longtasks = env.longtasks
+    if longtasks:
+        schedule_once(0.1, longtasks.run)
+        debug('speaker-id longtasks worker started')
+
+
+def init():
+    env = ServerEnv()
+    longtasks = SpeakerTasks(
+        'redis://127.0.0.1:6379',
+        'speaker_id',
+        worker_cnt=2,
+        stuck_seconds=1800,
+        max_age_hours=24
+    )
+    env.longtasks = longtasks
+    add_startup(on_app_built)
+
+    rf = RegisterFunction()
+    rf.register("status", status_handler)
+    rf.register("enroll", enroll_handler)
+    rf.register("identify", identify_handler)
+    rf.register("verify", verify_handler)
+    rf.register("compare", compare_handler)
+
+
+if __name__ == '__main__':
+    webapp(init)

conf/config.json

@@ -0,0 +1,37 @@
+{
+    "password_key": "SpeakerId2026Key",
+    "databases": {},
+    "session_redis": {
+        "host": "127.0.0.1",
+        "port": 6379,
+        "db": 2
+    },
+    "logger": {
+        "name": "speaker-id",
+        "levelname": "info",
+        "logfile": "$[workdir]$/logs/speaker-id.log"
+    },
+    "filesroot": "$[workdir]$/files",
+    "website": {
+        "paths": [
+            ["$[workdir]$/wwwroot", ""]
+        ],
+        "client_max_size": 52428800,
+        "host": "0.0.0.0",
+        "port": 9095,
+        "coding": "utf-8",
+        "indexes": ["index.html"],
+        "startswiths": [
+            {"leading": "/api/status", "registerfunction": "status"},
+            {"leading": "/api/enroll", "registerfunction": "enroll"},
+            {"leading": "/api/identify", "registerfunction": "identify"},
+            {"leading": "/api/verify", "registerfunction": "verify"},
+            {"leading": "/api/compare", "registerfunction": "compare"}
+        ],
+        "processors": [
+            [".dspy", "dspy"],
+            [".md", "md"]
+        ]
+    },
+    "hot_reload": false
+}