Remove non-source materials from source worktree

Ariver

2026-06-30 4c6f31c43a03ecb5a85ffb6a3ea3905a661af0f4

 .gitignore

@@ -16,6 +16,13 @@
# Duplicate generated help package copied outside the canonical source tree.
/Docs/Help/

# Non-source project knowledge, website/archive material, and local canvases live outside
# the source worktree under /Users/ar/Projects/Taglauncher-doc/.
/Docs/
/docs/
/canvas/
/文档导读.md

# Local scratch notes.
/项目管理规范.md