chore: add .env.example and requirements.txt, fix .gitignore to track .env.example

Author: Hritikd

.env.example

@@ -0,0 +1,28 @@
+# Continuum Environment Configuration
+# Copy to .env and fill in your values
+
+# ── LLM API Keys (for annotation judge) ───────────────────────────────────────
+OPENAI_API_KEY=sk-...
+ANTHROPIC_API_KEY=sk-ant-...
+
+# ── Database ───────────────────────────────────────────────────────────────────
+DATABASE_URL=postgresql://continuum:continuum@localhost:5432/continuum
+# Or for SQLite (development):
+# DB_PATH=./continuum.db
+
+# ── Redis (job queue) ─────────────────────────────────────────────────────────
+REDIS_URL=redis://localhost:6379
+
+# ── Training ──────────────────────────────────────────────────────────────────
+BASE_MODEL=meta-llama/Llama-3-8B-Instruct
+CHECKPOINT_DIR=./checkpoints
+TRAIN_TARGET_SIZE=1000
+HF_TOKEN=hf_...     # For gated models
+
+# ── Notifications ─────────────────────────────────────────────────────────────
+SLACK_WEBHOOK_URL=https://hooks.slack.com/services/...
+NOTIFICATION_WEBHOOK_URL=https://your-app.com/continuum-webhook
+
+# ── Worker Configuration ──────────────────────────────────────────────────────
+WORKER_TYPE=annotation     # annotation | training
+ANNOTATION_BUDGET=10.0

.gitignore

@@ -34,10 +34,12 @@ venv.bak/
 
 # API keys and secrets
 .env
-.env.*
-*.env
+.env.local
+.env.*.local
 secrets.json
 credentials.json
+# Keep .env.example tracked
+!.env.example
 
 # Testing
 .pytest_cache/

requirements.txt

@@ -0,0 +1,20 @@
+# Core dependencies (minimal install)
+litellm>=1.30.0
+httpx>=0.27.0
+pydantic>=2.0.0
+python-dotenv>=1.0.0
+tqdm>=4.66.0
+
+# Persistence
+aiosqlite>=0.20.0
+
+# Statistics (for regression guard)
+scipy>=1.13.0
+numpy>=1.26.0
+
+# API server
+fastapi>=0.111.0
+uvicorn[standard]>=0.30.0
+
+# Observability
+prometheus-client>=0.20.0