feat: initial commit - oncology literature search platform

OncoLit: a multi-tenant oncology literature search, feed, and
collaboration platform. Built with FastAPI + Vue 3 + PostgreSQL.
Includes PubMed pipeline, drug approvals, AI summaries, and
systematic review tools.

tmp_fix_article_date.py

@@ -0,0 +1,36 @@
+"""Fix pub_date from article_date where article_date has real month/day"""
+import asyncio
+from sqlalchemy import text
+from sqlalchemy.ext.asyncio import create_async_engine
+
+DATABASE_URL = 'postgresql+asyncpg://scilit:scilit_prod_2026@postgres:5432/scilit'
+
+async def main():
+    engine = create_async_engine(DATABASE_URL)
+    async with engine.connect() as conn:
+        # Preview
+        r = await conn.execute(text("""
+            SELECT id, pmid, pub_date, article_date FROM global_literature
+            WHERE EXTRACT(MONTH FROM pub_date)=1 AND EXTRACT(DAY FROM pub_date)=1
+            AND article_date IS NOT NULL 
+            AND NOT (EXTRACT(MONTH FROM article_date)=1 AND EXTRACT(DAY FROM article_date)=1)
+        """))
+        rows = r.all()
+        print(f'Found {len(rows)} records to fix via article_date:')
+        for row in rows[:10]:
+            print(f'  pmid={row.pmid} {row.pub_date} -> {row.article_date}')
+        
+        # Fix
+        fixed = 0
+        for row in rows:
+            await conn.execute(
+                text("UPDATE global_literature SET pub_date = :ad, updated_at = NOW() WHERE id = :id"),
+                {"ad": row.article_date, "id": row.id},
+            )
+            fixed += 1
+        await conn.commit()
+        print(f'\nFixed {fixed} records')
+        
+    await engine.dispose()
+
+asyncio.run(main())