Add public map with JWT admin login and protect admin APIs.

Keep map reads open; gate admin UI/nav and object mutations behind env-based admin credentials, and default parser batch limit to 10.

Co-authored-by: Cursor <cursoragent@cursor.com>

centers/analytics/api/app/routers/auth.py

@@ -0,0 +1,41 @@
+from fastapi import APIRouter, Depends, HTTPException
+from pydantic import BaseModel, Field
+
+from ..auth import (
+    admin_credentials_configured,
+    create_access_token,
+    verify_credentials,
+)
+from ..deps import verify_admin
+
+router = APIRouter(prefix="/admin/auth", tags=["auth"])
+
+
+class LoginRequest(BaseModel):
+    username: str = Field(min_length=1)
+    password: str = Field(min_length=1)
+
+
+class TokenResponse(BaseModel):
+    access_token: str
+    token_type: str = "bearer"
+
+
+class MeResponse(BaseModel):
+    username: str
+    role: str = "admin"
+
+
+@router.post("/login", response_model=TokenResponse)
+def login(payload: LoginRequest):
+    if not admin_credentials_configured():
+        raise HTTPException(status_code=503, detail="Admin auth is not configured")
+    if not verify_credentials(payload.username, payload.password):
+        raise HTTPException(status_code=401, detail="Invalid username or password")
+    token = create_access_token(username=payload.username.strip())
+    return TokenResponse(access_token=token)
+
+
+@router.get("/me", response_model=MeResponse)
+def me(username: str = Depends(verify_admin)):
+    return MeResponse(username=username)