chore: remove local dev_ctl script from public docs and repo

feat: support github daily trends with zh-localized summaries

docs: add github trends daily-weekly design spec

fix(github-trends): fallback to original description in zh view

docs(workflow): replace xhs hotspot with linuxdo hotspot in e2e diagram

feat(github-trends): remove bulk add button and optimize project column

feat: launch linuxdo trends with resilient refresh controls

docs: align zh workflow diagram and remove drawio

docs: enforce workflow diagram sync governance

feat(covers): support manual title/content source for cover generation

docs: remove xhs test-phase notes from readme

feat: add workflow jobs v2 and xhs trends pipeline

docs(license): add MIT license file and readme links

docs(repo): slim root by moving zh readme and changelog to docs

docs(readme): add github trends section and screenshot