feat: initial MVP - FastAPI backend + Vue3 frontend + docker-compose

- backend: FastAPI + SQLAlchemy 2.0(async) + asyncpg + Alembic
- 7 API routes: auth/me/articles/sources/bookmarks/subscriptions/admin
- models: User/Source/Article/Bookmark/Subscription/ApiToken
- services: RSS fetcher (feedparser) + Tencent TMT translator with quota + cache + local NLLB fallback
- workers: APScheduler + asyncio pipeline (fetch -> dedupe -> insert -> translate)
- seed scripts: create_user, seed_sources (5 RSS: Reuters/BBC/Al Jazeera/NHK/DW)
- frontend: Vue 3 + Vite + Naive UI + Pinia + vue-router
- pages: Login, Feed (24h), ArticleDetail, Sources, Bookmarks, AdminSources
- deploy: docker-compose (postgres/redis/api/worker/frontend/caddy)
- docs: README, DEPLOY, architecture, acceptance

backend/app/scripts/seed_sources.py

@@ -0,0 +1,114 @@
+"""种子:导入 MVP 5 源。
+
+- Reuters World
+- BBC World
+- Al Jazeera
+- NHK World
+- DW
+
+RSS 链接为公开 feed,实际链接可能变更;若 fetch 失败,先看 /admin/health。
+"""
+from __future__ import annotations
+
+import asyncio
+import sys
+
+from sqlalchemy import select
+from sqlalchemy.dialects.postgresql import insert as pg_insert
+from sqlalchemy.exc import IntegrityError
+
+from app.database import AsyncSessionLocal
+from app.models.source import Source, SourceKind
+
+SEEDS = [
+    {
+        "name": "Reuters World",
+        "slug": "reuters-world",
+        "kind": SourceKind.RSS,
+        "url": "https://feeds.reuters.com/Reuters/worldNews",
+        "region": "global",
+        "language_src": "en",
+        "priority": 90,
+        "fetch_interval_min": 30,
+        "translate_to": "zh",
+        "enabled": True,
+    },
+    {
+        "name": "BBC World",
+        "slug": "bbc-world",
+        "kind": SourceKind.RSS,
+        "url": "https://feeds.bbci.co.uk/news/world/rss.xml",
+        "region": "global",
+        "language_src": "en",
+        "priority": 85,
+        "fetch_interval_min": 30,
+        "translate_to": "zh",
+        "enabled": True,
+    },
+    {
+        "name": "Al Jazeera",
+        "slug": "aljazeera",
+        "kind": SourceKind.RSS,
+        "url": "https://www.aljazeera.com/xml/rss/all.xml",
+        "region": "mena",
+        "language_src": "en",
+        "priority": 80,
+        "fetch_interval_min": 45,
+        "translate_to": "zh",
+        "enabled": True,
+    },
+    {
+        "name": "NHK World",
+        "slug": "nhk-world",
+        "kind": SourceKind.RSS,
+        "url": "https://www3.nhk.or.jp/rss/news/cat0.xml",
+        "region": "asia",
+        "language_src": "en",
+        "priority": 70,
+        "fetch_interval_min": 60,
+        "translate_to": "zh",
+        "enabled": True,
+    },
+    {
+        "name": "DW (Deutsche Welle)",
+        "slug": "dw",
+        "kind": SourceKind.RSS,
+        "url": "https://rss.dw.com/xml/rss-en-all",
+        "region": "eu",
+        "language_src": "en",
+        "priority": 70,
+        "fetch_interval_min": 60,
+        "translate_to": "zh",
+        "enabled": True,
+    },
+]
+
+
+async def main() -> int:
+    async with AsyncSessionLocal() as session:
+        inserted = 0
+        for row in SEEDS:
+            stmt = (
+                pg_insert(Source)
+                .values(**row)
+                .on_conflict_do_nothing(index_elements=["slug"])
+                .returning(Source.id)
+            )
+            try:
+                r = await session.execute(stmt)
+                rid = r.scalar_one_or_none()
+                if rid is not None:
+                    inserted += 1
+                    print(f"  + {row['slug']} (id={rid})")
+                else:
+                    print(f"  = {row['slug']} (already exists)")
+            except IntegrityError as e:
+                print(f"  ! {row['slug']}: {e}", file=sys.stderr)
+                await session.rollback()
+        await session.commit()
+        print(f"seeded {inserted} new source(s)")
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(asyncio.run(main()))