feat: Phase 2 — Intel Protocol + Iron Protocol

Arc Reactor v2.0:
- research handler: DDG search → async page fetch → trafilatura extraction → Claude synthesis
- tool_loop handler: multi-step agent loop (up to 200 iter) with web_search, fetch_url, jarvis_agents, jarvis_alerts, current_time tools
- llm handler: multi-provider router (Claude/Groq/Ollama)
- /jobs/recent endpoint for HUD polling
- Phase 1 handlers preserved (ping/echo/shell)

chat.php — Tier 0.9 Intel Protocol (before KB intent engine):
- Detects: research/investigate/deep-dive/look up/find out about → research job
- Detects: step-by-step/figure out/analyze and report → tool_loop job
- Returns arc_job ID in response for UI polling
- Depth modifiers: quick/standard/deep

index.html:
- INTEL tab in right panel tab bar
- Research result cards with expand/collapse, synthesis, sources, status
- Live polling (4s) when INTEL tab is active + active jobs present
- Auto-switches to INTEL tab when research is triggered from chat
- intelPrompt() pre-fills chat input for new research

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

api/endpoints/chat.php

@@ -1063,6 +1063,67 @@ if (!$reply && preg_match('/\b(news|headlines|latest|what.?s happening|current e
     }
 }
 
+// ── Tier 0.9: Intel Protocol — research & tool_loop detection ────────────
+$arcJobId = null;
+
+// Detect "research X", "look up X", "deep dive X", "investigate X", "find out about X"
+$intelPatterns = [
+    '/^(?:jarvis[,\s]+)?(?:research|investigate|deep[- ]dive|deep dive)\s+(.+)/i' => 'research',
+    '/^(?:jarvis[,\s]+)?(?:look\s+(?:up|into)|find\s+out\s+(?:about)?)\s+(.+)/i'  => 'research',
+    '/^(?:jarvis[,\s]+)?(?:step[- ]by[- ]step|figure\s+out|analyze\s+and\s+report|work\s+through)\s+(.+)/i' => 'tool_loop',
+    '/^(?:jarvis[,\s]+)?(?:run\s+a\s+research\s+(?:job|task)\s+on)\s+(.+)/i' => 'research',
+];
+
+if (!$reply) {
+    foreach ($intelPatterns as $pattern => $jobType) {
+        if (preg_match($pattern, $message, $m)) {
+            $queryOrTask = trim($m[1]);
+            if (strlen($queryOrTask) < 3) break;
+
+            $depth = 'standard';
+            if (preg_match('/\b(?:quick|brief)\b/i', $message)) $depth = 'quick';
+            if (preg_match('/\b(?:deep|thorough|comprehensive|full)\b/i', $message)) $depth = 'deep';
+
+            $jobPayload = $jobType === 'research'
+                ? ['query' => $queryOrTask, 'depth' => $depth, 'provider' => 'claude']
+                : ['task' => $queryOrTask, 'max_iterations' => 12, 'provider' => 'claude'];
+
+            // Submit to Arc Reactor
+            $arcCh = curl_init('http://127.0.0.1:7474/job');
+            curl_setopt_array($arcCh, [
+                CURLOPT_RETURNTRANSFER => true,
+                CURLOPT_POST           => true,
+                CURLOPT_POSTFIELDS     => json_encode([
+                    'type'       => $jobType,
+                    'payload'    => $jobPayload,
+                    'priority'   => 7,
+                    'created_by' => 'chat:' . $sessionId,
+                ]),
+                CURLOPT_HTTPHEADER     => ['Content-Type: application/json'],
+                CURLOPT_TIMEOUT        => 5,
+                CURLOPT_CONNECTTIMEOUT => 3,
+            ]);
+            $arcRes = json_decode(curl_exec($arcCh), true);
+            curl_close($arcCh);
+
+            if (isset($arcRes['job_id'])) {
+                $arcJobId = $arcRes['job_id'];
+                if ($jobType === 'research') {
+                    $depthLabel = strtoupper($depth);
+                    $reply = "◈ INTEL PROTOCOL ACTIVATED — Running {$depthLabel} research on **{$queryOrTask}** (Job #{$arcJobId}). I'm searching sources, extracting content, and synthesizing a briefing now, {$userAddr}. Switch to the INTEL tab to watch live progress.";
+                } else {
+                    $reply = "◈ IRON PROTOCOL ACTIVATED — Multi-step analysis initiated for **{$queryOrTask}** (Job #{$arcJobId}). I'll work through this systematically using available tools, {$userAddr}. Results will appear in the INTEL tab.";
+                }
+                $source = "arc:{$jobType}";
+            } else {
+                $reply = "Intel Protocol is offline, {$userAddr}. Arc Reactor may be unavailable — I'll try to answer directly.";
+                $source = 'arc:offline';
+            }
+            break;
+        }
+    }
+}
+
 // ── Tier 1: Intent Engine (instant, no LLM) ───────────────────────────────
 if (!$reply) {
     $matched = KBEngine::match($message);
@@ -1193,6 +1254,7 @@ if (!$reply) {
     }
 }
 
+
 // ── Tier 2: Ollama local LLM (fast local fallback) ───────────────────────
 if (!$reply && defined('OLLAMA_HOST') && OLLAMA_HOST) {
     $ollamaHost  = OLLAMA_HOST;
@@ -1413,4 +1475,5 @@ echo json_encode([
     'source'     => $source,
     'session_id' => $sessionId,
     'timestamp'  => date('c'),
+    'arc_job'    => $arcJobId,
 ]);