Path.read_text

def _load_poc_history() -> list[str]:
    """Load list of previously created PoCs."""
    global _poc_topics
    if POC_HISTORY_FILE.exists():
        lines = POC_HISTORY_FILE.read_text().strip().split("\n")
        # Also populate topics set from history
        for line in lines:
            if "|" in line:
                title = line.split("|")[0].strip()
                keywords = _normalize_topic(title)
                if keywords:
                    _poc_topics.add(",".join(sorted(keywords)))
        return lines
    return []

def _save_poc_to_history(title: str, url: str) -> None:
    """Save a PoC to history."""
    global _poc_topics
    RESEARCH_DIR.mkdir(parents=True, exist_ok=True)
    with open(POC_HISTORY_FILE, "a") as f:
        f.write(f"{title} | {url}\n")

    # Also add to in-memory topic tracking

@classmethod
    def load(cls, path: Path) -> FetchState:
        """Load state from JSON file."""
        if path.exists():
            return cls.from_dict(json.loads(path.read_text()))
        return cls()

class GitHubClient:
    """Client for GitHub REST API with Code Search."""

    CODE_SEARCH_URL = "https://api.github.com/search/code"
    REPOS_URL = "https://api.github.com/repos"

    def __init__(self, token: str):
        self.token = token
        self.client = httpx.Client(
            headers={
                "Authorization": f"Bearer {token}",
                "Accept": "application/vnd.github+json",
                "X-GitHub-Api-Version": "2022-11-28",
            },
            timeout=30.0,
        )