feat: "ARIA reparieren"-Button in App + Diagnostic

Bei stuck OpenClaw-Runs (ARIA antwortet nicht mehr / "Antwort ohne Text"
auf jede Anfrage) kann der User jetzt selbst openclaw doctor --fix
anstossen — ohne SSH/docker exec.

Pfad:
- App-Button → rvs.send('doctor_fix') → Bridge → HTTP POST an
  Diagnostic /api/doctor-fix → dockerExec aria-core
- Diagnostic-Button → direkt HTTP POST /api/doctor-fix

Zwei Plaetze in der App: oben in der Thinking-Bubble (wenn ARIA denkt
aber haengt) und in Settings → Reparatur (immer erreichbar). In
Diagnostic neben dem Abbrechen-Button im Thinking-Indicator.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

diagnostic/server.js

@@ -1342,6 +1342,22 @@ const server = http.createServer((req, res) => {
     dockerExec("aria-core", "openclaw doctor --fix 2>/dev/null || true").catch(() => {});
     res.writeHead(200, { "Content-Type": "application/json" });
     res.end(JSON.stringify({ ok: true }));
+  } else if (req.url === "/api/doctor-fix" && req.method === "POST") {
+    // Manueller "ARIA reparieren"-Button — stuck OpenClaw-Runs aufloesen.
+    log("info", "server", "HTTP /api/doctor-fix — manueller Reparatur-Trigger");
+    dockerExec("aria-core", "openclaw doctor --fix 2>&1")
+      .then(out => {
+        const summary = (out || "").split("\n").filter(l => l.trim()).slice(-3).join(" | ");
+        broadcast({ type: "watchdog", status: "fixed", message: `Reparatur ausgefuehrt: ${summary || "OK"}` });
+        res.writeHead(200, { "Content-Type": "application/json" });
+        res.end(JSON.stringify({ ok: true, output: out }));
+      })
+      .catch(err => {
+        broadcast({ type: "watchdog", status: "error", message: `Reparatur fehlgeschlagen: ${err.message}` });
+        res.writeHead(500, { "Content-Type": "application/json" });
+        res.end(JSON.stringify({ ok: false, error: err.message }));
+      });
+    return;
   } else if (req.url.startsWith("/shared/")) {
     // Dateien aus Shared Volume ausliefern (Bilder, Uploads)
     const filePath = decodeURIComponent(req.url);