feat: test-generation + issue/PR summary via slash commands (/gen-tests, /summarize)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

scripts/gitea_api.py

@@ -47,6 +47,24 @@ def get_pr_diff(owner: str, repo: str, index: int) -> str:
     return _request("GET", f"/repos/{owner}/{repo}/pulls/{index}.diff", raw=True)
 
 
+def get_issue_thread(owner: str, repo: str, index: int) -> str:
+    """Titel + Body + alle MENSCHLICHEN Kommentare eines Issues/PRs als Text.
+
+    Eigene Bot-Kommentare (Marker `<!-- ci-ai:`) werden übersprungen, damit das
+    Summary nicht die eigene Ausgabe mitliest.
+    """
+    iss = _request("GET", f"/repos/{owner}/{repo}/issues/{index}")
+    parts = [f"# {iss.get('title', '')}\n\n{iss.get('body') or '(kein Text)'}"]
+    comments = _request("GET", f"/repos/{owner}/{repo}/issues/{index}/comments") or []
+    for c in comments:
+        body = c.get("body") or ""
+        if "<!-- ci-ai:" in body:
+            continue
+        author = (c.get("user") or {}).get("login", "?")
+        parts.append(f"--- @{author}:\n{body}")
+    return "\n\n".join(parts)
+
+
 def upsert_comment(owner: str, repo: str, index: int, marker: str, body: str) -> int:
     """Legt einen Kommentar an ODER editiert den vorhandenen mit gleichem Marker.