- CODEOWNERS: use @snapotter-hq username instead of non-existent team
- PR template: use absolute URLs (relative links break in PR body)
- CLA: strengthen entity definition with successor/assignee clause
- CLA workflow: store signatures on dedicated branch, add owner to allowlist
- CONTRIBUTING: clarify approval means the "approved" label, reword CCLA
- Bug template: allow "running from source" for developer contributors
Add full contribution infrastructure: CLA with broad sublicensing
rights for dual-licensing, CONTRIBUTING.md with scope rules and dev
setup, CLA Assistant workflow, CODEOWNERS, SUPPORT.md, PR template,
updated issue templates with contribution prompts, and declarative
label config.