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>

dashboard/app.py

@@ -4,6 +4,7 @@ Rich visualization dashboard for call analysis results.
 Following Beyond Brand Identity Guidelines v1.0
 """
 
+import os
 import sys
 from pathlib import Path
 from datetime import datetime
@@ -82,7 +83,17 @@ def main():
         st.markdown("---")
 
         # Batch selector
-        data_dir = Path(__file__).parent.parent / "data" / "output"
+        # On Render (production), use data/production; locally use data/output
+        base_path = Path(__file__).parent.parent / "data"
+        if os.environ.get("RENDER") or (base_path / "production").exists():
+            # Check production first (has committed data for cloud)
+            prod_path = base_path / "production"
+            if prod_path.exists() and any(prod_path.iterdir()):
+                data_dir = prod_path
+            else:
+                data_dir = base_path / "output"
+        else:
+            data_dir = base_path / "output"
 
         batches = get_available_batches(data_dir)