feat: consolidate env config and add deployment files

- Add debug_font_path, demo_docs_dir, e2e_api_base_url to config.py
- Fix hardcoded paths in pp_structure_debug.py, create_demo_images.py
- Fix hardcoded paths in test files
- Update .env.example with new configuration options
- Update .gitignore to exclude AI development files (.claude/, openspec/, AGENTS.md, CLAUDE.md)
- Add production startup script (start-prod.sh)
- Add README.md with project documentation
- Add 1panel Docker deployment files (docker-compose.yml, Dockerfiles, nginx.conf)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

backend/scripts/create_demo_images.py

@@ -3,11 +3,17 @@
 Create demo images for testing Tool_OCR
 """
 
-from PIL import Image, ImageDraw, ImageFont
+import sys
 from pathlib import Path
 
-# Demo docs directory
-DEMO_DIR = Path("/Users/egg/Projects/Tool_OCR/demo_docs")
+# Add backend to path for imports
+sys.path.insert(0, str(Path(__file__).resolve().parents[1]))
+
+from PIL import Image, ImageDraw, ImageFont
+from app.core.config import settings
+
+# Demo docs directory from settings
+DEMO_DIR = Path(settings.demo_docs_dir)
 
 def create_text_image(text, filename, size=(800, 600), font_size=40):
     """Create an image with text"""
@@ -15,15 +21,11 @@ def create_text_image(text, filename, size=(800, 600), font_size=40):
     img = Image.new('RGB', size, color='white')
     draw = ImageDraw.Draw(img)
 
-    # Try to use a font, fallback to default
+    # Try to use a font from settings, fallback to default
     try:
-        # Try system fonts
-        font = ImageFont.truetype("/System/Library/Fonts/STHeiti Light.ttc", font_size)
-    except:
-        try:
-            font = ImageFont.truetype("/System/Library/Fonts/Helvetica.ttc", font_size)
-        except:
-            font = ImageFont.load_default()
+        font = ImageFont.truetype(settings.debug_font_path, font_size)
+    except Exception:
+        font = ImageFont.load_default()
 
     # Calculate text position (centered)
     bbox = draw.textbbox((0, 0), text, font=font)
@@ -44,12 +46,9 @@ def create_multiline_text_image(lines, filename, size=(800, 1000), font_size=30)
     draw = ImageDraw.Draw(img)
 
     try:
-        font = ImageFont.truetype("/System/Library/Fonts/STHeiti Light.ttc", font_size)
-    except:
-        try:
-            font = ImageFont.truetype("/System/Library/Fonts/Helvetica.ttc", font_size)
-        except:
-            font = ImageFont.load_default()
+        font = ImageFont.truetype(settings.debug_font_path, font_size)
+    except Exception:
+        font = ImageFont.load_default()
 
     # Draw each line
     y = 50
@@ -66,12 +65,9 @@ def create_table_image(filename, size=(800, 600)):
     draw = ImageDraw.Draw(img)
 
     try:
-        font = ImageFont.truetype("/System/Library/Fonts/STHeiti Light.ttc", 24)
-    except:
-        try:
-            font = ImageFont.truetype("/System/Library/Fonts/Helvetica.ttc", 24)
-        except:
-            font = ImageFont.load_default()
+        font = ImageFont.truetype(settings.debug_font_path, 24)
+    except Exception:
+        font = ImageFont.load_default()
 
     # Draw table borders
     # Header row
@@ -115,6 +111,7 @@ def create_table_image(filename, size=(800, 600)):
 def main():
     # Create basic text images
     basic_dir = DEMO_DIR / "basic"
+    basic_dir.mkdir(parents=True, exist_ok=True)
     create_text_image(
         "這是中文繁體測試文檔\nTool_OCR 系統測試",
         basic_dir / "chinese_traditional.png"
@@ -146,10 +143,12 @@ def main():
         "5. 多種格式導出（TXT, JSON, Excel, MD, PDF）",
     ]
     layout_dir = DEMO_DIR / "layout"
+    layout_dir.mkdir(parents=True, exist_ok=True)
     create_multiline_text_image(layout_lines, layout_dir / "document.png")
 
     # Create table image
     tables_dir = DEMO_DIR / "tables"
+    tables_dir.mkdir(parents=True, exist_ok=True)
     create_table_image(tables_dir / "simple_table.png")
 
     print("\n✅ Demo images created successfully!")