feat(api): 长语音 voice_clip 后端(model+migration+scraper+sync+endpoint)

- VoiceClip model (BigInteger PK voice_clip_id, structured cols + raw_json)
- Alembic migration a1b2c3d4e5f6 (chains from 8c4f1d2a9e6b)
- scrape_voice_clips(client, user_id, *, channel, page_size) per-employee scraper
  over POST /wechatweb/call/list {pageNum, pageSize, userId}; channel stamped
  locally (wechat/whatsapp), startTime/endTime ms-epoch string -> int
- upsert_voice_clip repo + start_time/end_time/mp3_duration int coercion
- sync_voice_clips orchestrator: iterates distinct user_id across
  WechatAccount + WhatsappAccount, stamps channel per account table
- scheduler ENTITY_FUNCS['voice_clips'] + added to daily 'all' job
- GET /api/voice-clips (user_id exact beats user_real_name fuzzy; channel;
  company_code; start/end window on end_time; ordered end_time desc)
- VoiceClipOut schema + router registered in main.py
- tests: scraper (5) + API (11) = 16 new; full suite 370 green

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

yunke-server/app/api/routers/voice_clips.py

@@ -0,0 +1,89 @@
+"""GET /api/voice-clips — 长语音 (voice_clip) list.
+
+Read-only query over the mirrored ``voice_clip`` table. Powers the
+``VoiceClipModal`` (微信长语音 / WA wavoicecalllist 共用的只读展示 modal).
+
+Filters (all optional):
+
+* ``user_id``         — exact employee-id match (modal opens from a CallList
+  row keyed on the employee). Takes PRECEDENCE over ``user_real_name`` when
+  both are given (the id is more precise).
+* ``user_real_name``  — employee-name ILIKE / contains match (the 云客 modal's
+  员工姓名 fuzzy filter). Ignored when ``user_id`` is present.
+* ``channel``         — messaging channel (``wechat`` / ``whatsapp``).
+* ``company_code``    — exact 企业串码 match.
+* ``start`` / ``end`` — ms-epoch window compared against ``end_time`` (录音结束时间,
+  inclusive) — mirrors the 云客 modal's 录音结束时间 range filter.
+
+Ordered by ``end_time desc`` (nulls last) — most recent clips first, matching
+the 云客 modal's default ordering.
+"""
+
+from __future__ import annotations
+
+from typing import Annotated
+
+import sqlalchemy as sa
+from fastapi import APIRouter, Depends, Query
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.api.deps import get_session
+from app.api.schemas import Page, VoiceClipOut
+from app.db.models import VoiceClip
+
+router = APIRouter(prefix="/api", tags=["voice_clips"])
+
+SessionDep = Annotated[AsyncSession, Depends(get_session)]
+PageParam = Annotated[int, Query(ge=1)]
+PageSizeParam = Annotated[int, Query(ge=1, le=100)]
+
+
+@router.get("/voice-clips")
+async def list_voice_clips(
+    session: SessionDep,
+    page: PageParam = 1,
+    page_size: PageSizeParam = 20,
+    user_id: Annotated[str | None, Query()] = None,
+    user_real_name: Annotated[str | None, Query()] = None,
+    channel: Annotated[str | None, Query()] = None,
+    company_code: Annotated[str | None, Query()] = None,
+    start: Annotated[int | None, Query(ge=0)] = None,
+    end: Annotated[int | None, Query(ge=0)] = None,
+) -> Page[VoiceClipOut]:
+    """List voice clips with optional filters, newest by recording end first."""
+    conditions = []
+    # user_id takes precedence over user_real_name (id is the more precise
+    # filter; the 云客 modal switches between them based on whether the user
+    # edited the staff-name box).
+    if user_id is not None:
+        conditions.append(VoiceClip.user_id == user_id)
+    elif user_real_name is not None:
+        conditions.append(VoiceClip.user_real_name.ilike(f"%{user_real_name}%"))
+    if channel is not None:
+        conditions.append(VoiceClip.channel == channel)
+    if company_code is not None:
+        conditions.append(VoiceClip.company_code == company_code)
+    if start is not None:
+        conditions.append(VoiceClip.end_time >= start)
+    if end is not None:
+        conditions.append(VoiceClip.end_time <= end)
+
+    total_stmt = sa.select(sa.func.count()).select_from(VoiceClip)
+    if conditions:
+        total_stmt = total_stmt.where(*conditions)
+    total = (await session.execute(total_stmt)).scalar_one()
+
+    list_stmt = sa.select(VoiceClip)
+    if conditions:
+        list_stmt = list_stmt.where(*conditions)
+    list_stmt = (
+        list_stmt.order_by(
+            sa.nullslast(VoiceClip.end_time.desc()),
+            VoiceClip.voice_clip_id.asc(),
+        )
+        .limit(page_size)
+        .offset((page - 1) * page_size)
+    )
+    rows = (await session.execute(list_stmt)).scalars().all()
+    items = [VoiceClipOut.model_validate(row) for row in rows]
+    return Page(items=items, total=total, page=page, page_size=page_size)