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/app/core/config.py

@@ -7,21 +7,43 @@ from typing import List, Optional
 from pydantic_settings import BaseSettings
 from pydantic import Field, model_validator
 from pathlib import Path
+import platform
+from shutil import which
 
 # Anchor all default paths to the backend directory to avoid scattering runtime folders
 BACKEND_ROOT = Path(__file__).resolve().parent.parent.parent
 PROJECT_ROOT = BACKEND_ROOT.parent
 
 
+def _default_pandoc_path() -> str:
+    return which("pandoc") or "/usr/bin/pandoc"
+
+
+def _default_font_dir() -> str:
+    candidates = []
+    system = platform.system()
+    if system == "Darwin":
+        candidates.extend(["/System/Library/Fonts", "/Library/Fonts"])
+    elif system == "Windows":
+        candidates.append(r"C:\Windows\Fonts")
+    else:
+        candidates.extend(["/usr/share/fonts", "/usr/local/share/fonts"])
+
+    for path in candidates:
+        if Path(path).exists():
+            return path
+    return candidates[0] if candidates else ""
+
+
 class Settings(BaseSettings):
     """Application settings loaded from environment variables"""
 
     # ===== Database Configuration =====
-    mysql_host: str = Field(default="mysql.theaken.com")
-    mysql_port: int = Field(default=33306)
-    mysql_user: str = Field(default="A060")
+    mysql_host: str = Field(default="localhost")
+    mysql_port: int = Field(default=3306)
+    mysql_user: str = Field(default="")
     mysql_password: str = Field(default="")
-    mysql_database: str = Field(default="db_A060")
+    mysql_database: str = Field(default="")
 
     @property
     def database_url(self) -> str:
@@ -32,14 +54,16 @@ class Settings(BaseSettings):
         )
 
     # ===== Application Configuration =====
+    backend_host: str = Field(default="0.0.0.0")
     backend_port: int = Field(default=8000)
+    frontend_host: str = Field(default="0.0.0.0")
     frontend_port: int = Field(default=5173)
     secret_key: str = Field(default="your-secret-key-change-this")
     algorithm: str = Field(default="HS256")
     access_token_expire_minutes: int = Field(default=1440)  # 24 hours
 
     # ===== External Authentication Configuration =====
-    external_auth_api_url: str = Field(default="https://pj-auth-api.vercel.app")
+    external_auth_api_url: str = Field(default="https://your-auth-api.example.com")
     external_auth_endpoint: str = Field(default="/api/auth/login")
     external_auth_timeout: int = Field(default=30)
     token_refresh_buffer: int = Field(default=300)  # Refresh tokens 5 minutes before expiry
@@ -441,8 +465,8 @@ class Settings(BaseSettings):
     result_dir: str = Field(default=str(BACKEND_ROOT / "storage" / "results"))
 
     # ===== PDF Generation Configuration =====
-    pandoc_path: str = Field(default="/opt/homebrew/bin/pandoc")
-    font_dir: str = Field(default="/System/Library/Fonts")
+    pandoc_path: str = Field(default_factory=_default_pandoc_path)
+    font_dir: str = Field(default_factory=_default_font_dir)
     pdf_page_size: str = Field(default="A4")
     pdf_margin_top: int = Field(default=20)
     pdf_margin_bottom: int = Field(default=20)
@@ -456,7 +480,7 @@ class Settings(BaseSettings):
 
     # ===== Translation Configuration (DIFY API) =====
     enable_translation: bool = Field(default=True)
-    dify_base_url: str = Field(default="https://dify.theaken.com/v1")
+    dify_base_url: str = Field(default="https://your-dify-instance.example.com/v1")
     dify_api_key: str = Field(default="")  # Required: set in .env.local
     dify_timeout: float = Field(default=120.0)  # seconds
     dify_max_retries: int = Field(default=3)
@@ -487,6 +511,23 @@ class Settings(BaseSettings):
     log_level: str = Field(default="INFO")
     log_file: str = Field(default=str(BACKEND_ROOT / "logs" / "app.log"))
 
+    # ===== Development & Testing Configuration =====
+    # Debug font path for visualization scripts (pp_structure_debug, create_demo_images)
+    debug_font_path: str = Field(
+        default="/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf",
+        description="Font path for debug visualization scripts"
+    )
+    # Demo documents directory for testing
+    demo_docs_dir: str = Field(
+        default=str(PROJECT_ROOT / "demo_docs"),
+        description="Directory containing demo documents for testing"
+    )
+    # E2E test API base URL
+    e2e_api_base_url: str = Field(
+        default="http://localhost:8000/api/v2",
+        description="Base URL for E2E tests"
+    )
+
     @model_validator(mode="after")
     def _normalize_paths(self):
         """Resolve all runtime paths to backend-rooted absolutes"""