refactor: centralize environment variable management with Pydantic schema + CI gate
- Add agent/src/config/env_schema.py: Pydantic models for ~50 env vars across 6 sub-models (LLMConfig, DataConfig, APIConfig, SwarmConfig, AgentTuningConfig, PathConfig)
- Add agent/src/config/accessor.py: thread-safe lazy singleton get_env_config() + unified _parse_bool() + reset_env_config() for test isolation
- Fix TIMEOUT_SECONDS CLI display default (2400 -> 120, matching runtime)
- Fix MAX_RETRIES CLI display default ('(not set)' -> 2, matching runtime)
- Fix VIBE_TRADING_API_KEY server-side alias (security.py now resolves it via get_env_config().api.api_auth_key)
- Fix VIBE_TRADING_CHANNELS_AUTO_START=on silently ignored (unified _parse_bool accepts 'on')
- Migrate 207 scattered os.getenv/os.environ.get calls across 50+ files to centralized accessor
- Convert 12 module-level import-time fixations to lazy accessor pattern (loop.py, swarm_tool.py, _backend.py, worker.py, security.py)
- Add reset_env_config() calls after settings_routes.py env mutations (13 mutation points)
- Replace print('[WARN]...') with logger.warning() in tushare/okx/yfinance loaders
- Add tools/ci_env_var_gate.py: AST-based CI gate preventing new os.getenv calls outside src/config/
- Add tools/test_ci_env_var_gate.py: 18 test cases for the CI gate
- Update tools/ci_grep_gates.sh to call the new env var gate
- Add agent/tests/test_env_schema.py: 81 test cases covering defaults, type coercion, singleton, thread safety, bool parser
- Update agent/.env.example with schema cross-references
- Update agent/tests/conftest.py with reset_env_config autouse fixture
Closes HKUDS/Vibe-Trading#438
Co-Authored-By: OpenCode <noreply@opencode.ai>
AI-Model: alibaba-cn/glm-5.2
Signed-off-by: shadowinlife <shadowinlife@gmail.com>
Co-Authored-By: opencode <noreply@ai-tool.com>
Co-Authored-By: Claude Code <noreply@anthropic.com>
AI-Contributed/Feature: 1383/1383
AI-Contributed/UT: 735/735
shadowinlife
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