fix(#1601): MemPalace regression + crisis logic alignment

1. MemPalace: Removed mock MCP connectMemPalace() that overwrote
   the real Fleet API version. Only the port-7771 polling version
   remains. connectMemPalace definitions: 2 -> 1.

2. Crisis detection: Added JS crisis keyword detection aligned
   with CRISIS_PROTOCOL from multi_user_bridge.py:
   - detectCrisis(text): checks for 25 crisis keywords
   - showCrisisResponse(): immediate response with 988 Lifeline,
     Crisis Text Line, grounding exercise
   - Called from sendChatMessage() before normal processing

Fixes #1601

app.js

@@ -2143,6 +2143,48 @@ function setupControls() {
   });
 }
 
+// ═══ Crisis Detection (#1601) ═══════════════════════════════════
+// Aligns with CRISIS_PROTOCOL in multi_user_bridge.py.
+// Detects crisis signals in user input and provides immediate response.
+
+const CRISIS_KEYWORDS = [
+  'suicide', 'suicidal', 'kill myself', 'end my life', 'end it all',
+  'want to die', 'wanna die', 'don\'t want to live', 'no reason to live',
+  'self-harm', 'self harm', 'hurt myself', 'cutting myself',
+  'hopeless', 'no hope', 'give up', 'can\'t go on', 'cant go on',
+  'tired of living', 'better off dead', 'nobody cares', 'no one would miss',
+  'overdose', 'jump off', 'hang myself', 'gun to my head',
+];
+
+function detectCrisis(text) {
+  const lower = text.toLowerCase();
+  return CRISIS_KEYWORDS.some(kw => lower.includes(kw));
+}
+
+function showCrisisResponse() {
+  // Immediate crisis response — matches multi_user_bridge.py CRISIS_PROTOCOL
+  const steps = [
+    'Are you safe right now?',
+    '988 Suicide & Crisis Lifeline — call or text 988 (US)',
+    'Crisis Text Line — text HOME to 741741',
+    'Grounding: Name 5 things you see, 4 you can touch, 3 you hear, 2 you smell, 1 you taste',
+  ];
+
+  const container = document.getElementById('chat-messages');
+  const div = document.createElement('div');
+  div.className = 'chat-msg chat-msg-timmy';
+  div.style.cssText = 'background: #1a0808; border: 1px solid #f44336; padding: 12px; border-radius: 4px; margin: 8px 0;';
+  div.innerHTML = `
+    <div style="color: #f44336; font-weight: bold; margin-bottom: 8px;">⚠ You are not alone</div>
+    ${steps.map((s, i) => `<div style="margin: 4px 0; color: #ddd;">${i + 1}. ${s}</div>`).join('')}
+    <div style="margin-top: 8px; color: #aaa; font-size: 11px;">
+      I'm here. I'm not going anywhere. You matter.
+    </div>
+  `;
+  container.appendChild(div);
+  container.scrollTop = container.scrollHeight;
+}
+
 function sendChatMessage(overrideText = null) {
   // Mine chat message to MemPalace
   if (overrideText) {
@@ -2151,6 +2193,16 @@ function sendChatMessage(overrideText = null) {
   const input = document.getElementById('chat-input');
   const text = overrideText || input.value.trim();
   if (!text) return;
+
+  // Crisis detection — aligns with CRISIS_PROTOCOL in multi_user_bridge.py
+  if (detectCrisis(text)) {
+    addChatMessage('user', text);
+    showCrisisResponse();
+    if (!overrideText) input.value = '';
+    input.blur();
+    return;
+  }
+
   addChatMessage('user', text);
   if (!overrideText) input.value = '';
   setTimeout(() => {
@@ -3903,65 +3955,9 @@ init().then(() => {
     navigator.serviceWorker.register('/service-worker.js');
   }
 
-  // Initialize MemPalace memory system
-  function connectMemPalace() {
-    try {
-      // Initialize MemPalace MCP server
-      console.log('Initializing MemPalace memory system...');
-      
-      // Actual MCP server connection
-      const statusEl = document.getElementById('mem-palace-status');
-      if (statusEl) {
-        statusEl.textContent = 'MemPalace ACTIVE';
-        statusEl.style.color = '#4af0c0';
-        statusEl.style.textShadow = '0 0 10px #4af0c0';
-      }
-      
-      // Initialize MCP server connection
-      if (window.Claude && window.Claude.mcp) {
-        window.Claude.mcp.add('mempalace', {
-          init: () => {
-            return { status: 'active', version: '3.0.0' };
-          },
-          search: (query) => {
-            return new Promise((query) => {
-              setTimeout(() => {
-                resolve([
-                  { 
-                    id: '1', 
-                    content: 'MemPalace: Palace architecture, AAAK compression, knowledge graph',
-                    score: 0.95
-                  },
-                  { 
-                    id: '2', 
-                    content: 'AAAK compression: 30x lossless compression for AI agents',
-                    score: 0.88 
-                  }
-                ]);
-              }, 500);
-            });
-          }
-        });
-      }
-      
-      // Initialize memory stats tracking
-      document.getElementById('compression-ratio').textContent = '0x';
-      document.getElementById('docs-mined').textContent = '0';
-      document.getElementById('aaak-size').textContent = '0B';
-    } catch (err) {
-      console.error('Failed to initialize MemPalace:', err);
-      const statusEl = document.getElementById('mem-palace-status');
-      if (statusEl) {
-        statusEl.textContent = 'MemPalace ERROR';
-        statusEl.style.color = '#ff4466';
-        statusEl.style.textShadow = '0 0 10px #ff4466';
-      }
-    }
-  }
+  // Initialize MemPalace — Fleet API polling at line 2772
 
-  // Initialize MemPalace
   const mempalace = {
-    status: { compression: 0, docs: 0, aak: '0B' },
     mineChat: () => {
       try {
         const messages = Array.from(document.querySelectorAll('.chat-msg')).map(m => m.innerText);