docs: add security policy

docs: add Code of Conduct and issue templates

docs: adapt Star History chart for dark mode

docs: refresh Star History chart cache

docs: add Gemma 4 to Model Agnostic feature description

feat: add Gemma 4 auto-orchestration example (runTeam)

feat: add Gemma 4 local model example with tool-calling

docs: add DECISIONS.md recording deliberate "won't do" choices

docs: add supported providers section and clarify contributing guidelines

chore: add tsx to devDependencies for running examples

docs: replace inline code examples with examples/ index table

docs: add examples for local models (Ollama) and fan-out/aggregate pattern

docs: sync Chinese README source file count (20 → 27)

docs: fix source file count in README (20 → 27)

fix: use explicit crypto import for Node 18 compatibility