fix: Beschreibung generieren gibt jetzt reinen Fließtext aus

Neuer raw_text Parameter in call_claude() umgeht den JSON-System-Prompt.
Haiku gibt direkt lesbaren Text zurück statt JSON-Objekte.
Gesamtes JSON-Parsing (_json_to_text, Markdown-Strip) entfernt.

src/agents/claude_client.py

@@ -43,7 +43,7 @@ def _sanitize_mdash(text: str) -> str:
     """Entfernt Gedankenstriche aus LLM-Output (KI-Indikator)."""
     return text.replace("\u2014", ", ").replace("\u2013", ", ")
 
-async def call_claude(prompt: str, tools: str | None = "WebSearch,WebFetch", model: str | None = None) -> tuple[str, ClaudeUsage]:
+async def call_claude(prompt: str, tools: str | None = "WebSearch,WebFetch", model: str | None = None, raw_text: bool = False) -> tuple[str, ClaudeUsage]:
     """Ruft Claude CLI auf. Gibt (result_text, usage) zurück.
 
     Prompt wird via stdin uebergeben um OS ARG_MAX Limits zu vermeiden.
@@ -60,11 +60,12 @@ async def call_claude(prompt: str, tools: str | None = "WebSearch,WebFetch", mod
         cmd.extend(["--allowedTools", tools])
     else:
         cmd.extend(["--max-turns", "1", "--allowedTools", ""])
-        cmd.extend(["--append-system-prompt",
-            "CRITICAL: You are a JSON-only output agent. "
-            "Output EXCLUSIVELY a single valid JSON object. "
-            "No explanatory text, no markdown fences, no continuation of previous responses. "
-            "Start your response with { and end with }."])
+        if not raw_text:
+            cmd.extend(["--append-system-prompt",
+                "CRITICAL: You are a JSON-only output agent. "
+                "Output EXCLUSIVELY a single valid JSON object. "
+                "No explanatory text, no markdown fences, no continuation of previous responses. "
+                "Start your response with { and end with }."])
 
     process = await asyncio.create_subprocess_exec(
         *cmd, stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE,

src/routers/incidents.py

@@ -186,30 +186,6 @@ Erstelle eine knappe, informative Beschreibung mit:
 
 Schreibe NUR die Beschreibung als Fliesstext (3-5 Zeilen). Keine Erklaerungen davor oder danach."""
 
-def _json_to_text(obj, depth=0):
-    """Konvertiert verschachteltes JSON in lesbaren Fliesstext."""
-    parts = []
-    if isinstance(obj, str):
-        return obj
-    if isinstance(obj, list):
-        for item in obj:
-            if isinstance(item, str):
-                parts.append(f"- {item}")
-            elif isinstance(item, dict):
-                parts.append(_json_to_text(item, depth + 1))
-        return "\n".join(parts)
-    if isinstance(obj, dict):
-        for key, val in obj.items():
-            if isinstance(val, str):
-                parts.append(val)
-            elif isinstance(val, list):
-                parts.append(_json_to_text(val, depth + 1))
-            elif isinstance(val, dict):
-                parts.append(_json_to_text(val, depth + 1))
-        return "\n".join(parts)
-    return str(obj)
-
-
 _enhance_logger = logging.getLogger("osint.enhance")
 
 
@@ -227,29 +203,12 @@ async def enhance_description(
     prompt = template.format(title=data.title.strip(), context=context)
 
     try:
-        result, usage = await call_claude(prompt, tools=None, model=CLAUDE_MODEL_FAST)
-
-        # call_claude erzwingt bei tools=None JSON-Output —
-        # Haiku wrapped den Text dann in ein JSON-Objekt (oft verschachtelt)
-        text = result.strip()
-        # Markdown-Code-Block-Wrapper entfernen
-        import re as _re
-        _md = _re.search(r'`{3}(?:json)?\s*\n?(.*?)\n?\s*`{3}', text, _re.DOTALL)
-        if _md:
-            text = _md.group(1).strip()
-        try:
-            import json as _json
-            parsed = _json.loads(text)
-            if isinstance(parsed, dict):
-                text = _json_to_text(parsed)
-        except (ValueError, TypeError):
-            pass  # Kein JSON — text direkt verwenden
-
+        result, usage = await call_claude(prompt, tools=None, model=CLAUDE_MODEL_FAST, raw_text=True)
         _enhance_logger.info(
             f"Beschreibung generiert fuer \"{data.title[:50]}\": "
             f"{usage.input_tokens}in/{usage.output_tokens}out"
         )
-        return {"description": text}
+        return {"description": result.strip()}
     except Exception as e:
         _enhance_logger.error(f"Beschreibung generieren fehlgeschlagen: {e}")
         raise HTTPException(status_code=500, detail="Beschreibung konnte nicht generiert werden")