feat: Add Render.com deployment support with production data

Render Configuration:
- render.yaml for declarative deployment
- requirements-dashboard.txt (lightweight deps for cloud)
- Updated .streamlit/config.toml for production
- Updated app.py to auto-detect production vs local data

Production Data:
- Added data/production/test-07/ with 30 real call analyses
- Updated .gitignore to allow data/production/

Documentation:
- Added Render.com section to DEPLOYMENT.md with step-by-step guide

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

data/production/test-07/features/10122025_0082038C3CFBF7D0.json

@@ -0,0 +1,91 @@
+{
+  "call_id": "10122025_0082038C3CFBF7D0",
+  "events": [
+    {
+      "event_type": "SILENCE",
+      "start_time": 88.17,
+      "end_time": 99.05,
+      "duration_sec": 10.879999999999995,
+      "metadata": {
+        "before_speaker": "B",
+        "after_speaker": "A"
+      },
+      "source": "observed"
+    },
+    {
+      "event_type": "SILENCE",
+      "start_time": 104.97,
+      "end_time": 124.38,
+      "duration_sec": 19.409999999999997,
+      "metadata": {
+        "before_speaker": "A",
+        "after_speaker": "B"
+      },
+      "source": "observed"
+    },
+    {
+      "event_type": "SILENCE",
+      "start_time": 190.68,
+      "end_time": 197.96,
+      "duration_sec": 7.280000000000001,
+      "metadata": {
+        "before_speaker": "B",
+        "after_speaker": "A"
+      },
+      "source": "observed"
+    },
+    {
+      "event_type": "SILENCE",
+      "start_time": 242.08,
+      "end_time": 258.96,
+      "duration_sec": 16.879999999999967,
+      "metadata": {
+        "before_speaker": "B",
+        "after_speaker": "A"
+      },
+      "source": "observed"
+    },
+    {
+      "event_type": "SILENCE",
+      "start_time": 292.57,
+      "end_time": 344.8,
+      "duration_sec": 52.23000000000002,
+      "metadata": {
+        "before_speaker": "A",
+        "after_speaker": "B"
+      },
+      "source": "observed"
+    },
+    {
+      "event_type": "SILENCE",
+      "start_time": 1021.32,
+      "end_time": 1029.4,
+      "duration_sec": 8.080000000000041,
+      "metadata": {
+        "before_speaker": "B",
+        "after_speaker": "A"
+      },
+      "source": "observed"
+    }
+  ],
+  "turn_metrics": {
+    "total_turns": 102,
+    "agent_turns": 51,
+    "customer_turns": 51,
+    "agent_talk_ratio": 0.2869023746701846,
+    "customer_talk_ratio": 0.5220571679859276,
+    "silence_ratio": 0.17481882145998273,
+    "interruption_count": 0,
+    "avg_turn_duration_sec": 9.189869999999996,
+    "source": "observed"
+  },
+  "hold_count": 0,
+  "total_hold_duration_sec": 0.0,
+  "transfer_count": 0,
+  "silence_count": 6,
+  "interruption_count": 0,
+  "audio_duration_sec": 1137.0,
+  "language": "es",
+  "speaker_count": 2,
+  "created_at": "2026-01-19T13:39:12.823020"
+}