Compact UI: condensed plan, collapsible code, minimal results

Changes:
- Plan: Show only overview + files list (not full implementation details)
- Code: Collapsible sections with <details> tags, shows line count
- Results: Compact table with cost inline in header

New output format:
## Plan Summary
[1-2 sentence overview]
Files: file1.py, file2.md

## Generated Code
▶ file1.py (15 lines) - Click to expand
▶ file2.md (20 lines) - Click to expand

## ✅ Success | Cost: $0.08
| Step | Status |
|------|--------|
| Plan | ✅ |
| Code | ✅ 2 files |
| Review | ✅ Approved |

Dockerfile

@@ -1,5 +1,5 @@
 # HuggingFace Spaces Dockerfile for CodePilot
-# BUILD_VERSION: 19 (v3.4.2 reorder - Progress → Plan → Code → Result)
+# BUILD_VERSION: 20 (v3.5.0 compact-ui - condensed plan, collapsible code, compact results)
 FROM python:3.11-slim
 
 # Set working directory

chainlit_app.py

@@ -22,8 +22,8 @@ from concurrent.futures import ThreadPoolExecutor
 # ============================================================
 # STARTUP VERSION CHECK - Change this to detect if rebuild worked
 # ============================================================
-APP_VERSION = "3.4.2-reorder"
-BUILD_ID = "2024-12-20-v3"
+APP_VERSION = "3.5.0-compact-ui"
+BUILD_ID = "2024-12-20-v4"
 print("=" * 60)
 print(f"[STARTUP] CodePilot Chainlit App")
 print(f"[STARTUP] APP_VERSION: {APP_VERSION}")
@@ -76,7 +76,7 @@ def get_file_extension(file_path: str) -> str:
 
 
 def format_code_output(code_changes: dict) -> str:
-    """Format code changes as copyable markdown code blocks."""
+    """Format code changes as collapsible markdown code blocks."""
     if not code_changes:
         return "No code changes."
 
@@ -85,12 +85,17 @@ def format_code_output(code_changes: dict) -> str:
         # Get just the filename for display
         filename = os.path.basename(file_path)
         lang = get_file_extension(file_path)
+        line_count = len(content.split('\n'))
 
-        output.append(f"### `{filename}`")
-        output.append(f"**Full path:** `{file_path}`")
+        # Use collapsible details/summary
+        output.append(f"<details>")
+        output.append(f"<summary><strong>{filename}</strong> ({line_count} lines) - Click to expand</summary>")
+        output.append(f"")
+        output.append(f"**Path:** `{file_path}`")
         output.append(f"```{lang}")
         output.append(content)
         output.append("```")
+        output.append(f"</details>")
         output.append("")
 
     return "\n".join(output)
@@ -184,56 +189,96 @@ def format_progress_display(status: dict, total_cost: float) -> str:
 
 
 def format_final_result(result: dict, total_cost: float) -> str:
-    """Format the final result with test table and summary."""
+    """Format the final result with compact test table."""
     lines = []
 
-    # Status header
+    # Status header with cost inline
     success = result.get('success', False)
     status_icon = "✅" if success else "❌"
-    lines.append(f"## Result: {status_icon} {'Success' if success else 'Failed'}\n")
+    lines.append(f"## {status_icon} {'Success' if success else 'Failed'} | Cost: ${total_cost:.4f}\n")
 
-    # Review result table
-    lines.append("### Review Results\n")
-    lines.append("| Check | Result |")
-    lines.append("|-------|--------|")
+    # Compact results table
+    lines.append("| Step | Status |")
+    lines.append("|------|--------|")
 
-    if result.get('plan'):
-        lines.append("| Plan Created | ✅ Pass |")
-    else:
-        lines.append("| Plan Created | ❌ Fail |")
+    # Plan
+    lines.append(f"| Plan | {'✅' if result.get('plan') else '❌'} |")
 
+    # Code
     if result.get('code_changes'):
-        lines.append(f"| Code Written | ✅ Pass ({len(result['code_changes'])} files) |")
+        lines.append(f"| Code | ✅ {len(result['code_changes'])} files |")
     else:
-        lines.append("| Code Written | ❌ Fail |")
+        lines.append("| Code | ❌ |")
 
+    # Review
     if result.get('review_feedback'):
-        if success:
-            lines.append("| Code Review | ✅ Approved |")
-        else:
-            lines.append("| Code Review | ❌ Rejected |")
+        lines.append(f"| Review | {'✅ Approved' if success else '❌ Rejected'} |")
     else:
-        lines.append("| Code Review | ⬜ Not Run |")
-
-    lines.append("")
-
-    # Cost summary
-    lines.append("### Cost Summary\n")
-    lines.append(f"**Total Cost:** ${total_cost:.4f}")
-    lines.append(f"**Iterations:** {result.get('iterations', 'N/A')}")
+        lines.append("| Review | ⬜ |")
 
     return "\n".join(lines)
 
 
 def format_plan_display(plan: str) -> str:
-    """Format the implementation plan for display."""
+    """Format a condensed version of the implementation plan."""
     if not plan:
         return ""
 
-    lines = ["## Implementation Plan\n"]
-    lines.append(plan)
-    lines.append("")
+    lines = ["## Plan Summary\n"]
+
+    # Extract just the overview and files from the plan
+    plan_lines = plan.split('\n')
+    in_overview = False
+    in_files = False
+    overview_text = []
+    files_list = []
+
+    for line in plan_lines:
+        line_lower = line.lower().strip()
+
+        # Detect sections
+        if 'overview' in line_lower and ('#' in line or line_lower.startswith('overview')):
+            in_overview = True
+            in_files = False
+            continue
+        elif 'files to' in line_lower or 'files:' in line_lower:
+            in_overview = False
+            in_files = True
+            continue
+        elif line.startswith('#') or line.startswith('==='):
+            in_overview = False
+            in_files = False
+            continue
+
+        # Collect content
+        if in_overview and line.strip():
+            overview_text.append(line.strip())
+        elif in_files and line.strip():
+            # Extract file paths or names
+            if '/' in line or '.py' in line or '.md' in line or '.html' in line:
+                # Clean up the line to get just the filename
+                clean_line = line.strip().lstrip('-').lstrip('*').lstrip('1234567890.').strip()
+                if clean_line:
+                    files_list.append(clean_line)
+
+    # Build condensed output
+    if overview_text:
+        lines.append(' '.join(overview_text[:2]))  # First 2 sentences max
+        lines.append("")
+
+    if files_list:
+        lines.append("**Files to create/modify:**")
+        for f in files_list[:5]:  # Max 5 files
+            # Extract just filename from path
+            filename = os.path.basename(f.split()[0]) if f else f
+            lines.append(f"- `{filename}`")
+        if len(files_list) > 5:
+            lines.append(f"- ... and {len(files_list) - 5} more")
+    else:
+        # Fallback: just show first 3 lines of plan
+        lines.append(plan_lines[0] if plan_lines else "Plan created.")
 
+    lines.append("")
     return "\n".join(lines)