snapshot before v0.5 refactor

.gitignore

@@ -0,0 +1,53 @@
+# ============ 密钥 ============
+secrets.env
+.env
+*.key
+*.pem
+
+# ============ 字体（~140MB，通过 download-fonts.sh 获取）============
+.opencode/templates/fonts/*.otf
+.opencode/templates/fonts/*.ttf
+.opencode/templates/fonts/*.ttc
+.opencode/templates/fonts/*.woff*
+
+# ============ 研究产出物（大文件）============
+projects/*/phase4/*.pdf
+projects/*/phase4/*.docx
+projects/*/phase4/figures/*.png
+projects/*/phase2/evidence/*.cache
+projects/*/**/*.tmp
+
+# ============ Python ============
+__pycache__/
+*.py[cod]
+*$py.class
+*.egg-info/
+.venv/
+venv/
+env/
+.pytest_cache/
+.mypy_cache/
+.ruff_cache/
+.python-version
+pip-log.txt
+pip-wheel-log/
+
+# ============ 系统 ============
+.DS_Store
+Thumbs.db
+*.swp
+*.swo
+*~
+
+# ============ 编辑器 ============
+.vscode/
+.idea/
+*.sublime-*
+
+# ============ OpenCode ============
+.opencode/log/
+.opencode/cache/
+
+# ============ 归档（不纳入版本控制）============
+archive/*
+!archive/.gitkeep