Fix: Bridge --verbose Flag + korrekte Event-Extraktion

- --verbose ist Pflicht für --output-format stream-json
- total_cost_usd statt cost_usd für Kosten
- usage.input_tokens/output_tokens + Cache-Info
- Session-ID aus system.init Events
- rate_limit_event ignorieren
- allowedTools entfernt (Claude entscheidet selbst)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

scripts/claude-bridge.js

@@ -51,8 +51,7 @@ function spawnClaude(message, requestId) {
   const args = [
     '-p',                         // Print-Modus (nicht interaktiv)
     '--output-format', 'stream-json',  // Streaming JSON Events
-    '--allowedTools', 'Read', 'Glob', 'Grep', 'Bash', 'Edit', 'Write',
-                      'WebFetch', 'WebSearch', 'Agent',
+    '--verbose',                  // Pflicht für stream-json
   ];
 
   // Bei Fortsetzung letzte Session verwenden
@@ -147,11 +146,15 @@ function handleClaudeEvent(event, agentId, requestId, textState) {
 
   switch (type) {
     case 'system':
-      if (event.subtype === 'session_id' && event.session_id) {
+      if (event.session_id) {
         currentSessionId = event.session_id;
       }
       break;
 
+    case 'rate_limit_event':
+      // Ignorieren
+      break;
+
     case 'assistant':
       // Vollständige Nachricht — Inhalt extrahieren
       if (event.message?.content) {
@@ -204,13 +207,16 @@ function handleClaudeEvent(event, agentId, requestId, textState) {
       // Endergebnis mit Kosten
       sendEvent('result', {
         text: event.result || '',
-        cost: event.cost_usd || event.cost || 0,
+        cost: event.total_cost_usd || event.cost_usd || 0,
         tokens: {
-          input: event.input_tokens || 0,
-          output: event.output_tokens || 0,
+          input: event.usage?.input_tokens || 0,
+          output: event.usage?.output_tokens || 0,
+          cache_read: event.usage?.cache_read_input_tokens || 0,
+          cache_create: event.usage?.cache_creation_input_tokens || 0,
         },
         session_id: event.session_id || currentSessionId,
         duration_ms: event.duration_ms || 0,
+        num_turns: event.num_turns || 0,
       });
 
       // Session-ID für Fortsetzung merken