requirements.txt

# ── Scraper layer ─────────────────────────────────────────────────────
DrissionPage>=4.0,<5.0
pandas>=2.0,<3.0
requests>=2.31,<3.0
tqdm>=4.66,<5.0

# ── HTTP reliability ───────────────────────────────────────────────────
urllib3>=2.0,<3.0          # retry + backoff (used by requests)
tenacity>=8.2,<10.0        # optional app-level retry (with_tenacity helper)

# ── Analysis layer ────────────────────────────────────────────────────
numpy>=1.24,<2.0
statsmodels>=0.14,<0.16    # OLS regression
scikit-learn>=1.3,<2.0     # PSM (optional)
matplotlib>=3.7,<4.0       # chart generation (optional)

# ── Chat bot / LLM layer ──────────────────────────────────────────────
python-dotenv>=1.0,<2.0
openai>=1.12,<2.0          # DeepSeek + OpenAI (shared client)
anthropic>=0.25,<1.0       # Anthropic Claude (optional)
PyYAML>=6.0,<7.0           # candidate_profile.yaml loader
# google-generativeai>=0.5  # Google Gemini (uncomment if needed)

# ── Dev / logging ─────────────────────────────────────────────────────
colorlog>=6.8,<7.0         # optional coloured console output