test: cover manager behavior without live Gitea

tests/conftest.py

@@ -0,0 +1,30 @@
+from __future__ import annotations
+
+from pathlib import Path
+
+import pytest
+
+from agent_gitea.config import AppConfig
+from agent_gitea.db import Database
+
+
+def make_config(tmp_path: Path, **overrides: object) -> AppConfig:
+    data = {
+        "gitea": {"base_url": "https://gitea.test", "token_env": "GITEA_TOKEN"},
+        "database_path": tmp_path / "state.sqlite3",
+        "scheduler": {"interval_seconds": 1, "concurrency": 1, "lease_seconds": 60},
+        "workspace": {"root": tmp_path / "workspaces", "cleanup_on_success": False},
+        "agents": {
+            "implementer": {"command": ["implementer", "{prompt_path}"]},
+            "reviewer": {"command": ["reviewer", "{prompt_path}"]},
+        },
+    }
+    data.update(overrides)
+    return AppConfig.model_validate(data)
+
+
+@pytest.fixture
+def db(tmp_path: Path) -> Database:
+    database = Database(tmp_path / "state.sqlite3")
+    database.migrate()
+    return database