refactor(claude): optimize context with path-filtered rules

Reduced startup context by 72% (352 → 100 lines) by applying Claude Code
context optimization patterns.

Changes:
- CLAUDE.md: Stripped to essential project info only (90 → 33 lines)
- Removed duplicate rules already in global config (git safety, backups)
- Moved architecture.md to rules/ with path filter (main.ts, lib/, templates/)
- Moved content.md to rules/ with path filter (docs/**/*.md)

Path-filtered rules load only when editing relevant files, eliminating
unnecessary context during routine documentation updates. Duplicate safety
rules (commits, backups, worktree) now rely on ~/.claude/rules/git/safety.md
instead of per-project repetition.

Author: lambdalisue

.claude/CLAUDE.md

@@ -1,89 +1,33 @@
-# Probitas Documentation
+# Probitas Documentation Site
 
-Documentation site for Probitas - a scenario-based testing framework for Deno.
-
-Repository: `probitas/documents`
+Documentation for Probitas - a scenario-based testing framework for Deno.
 
 ## Quick Reference
 
 - **Runtime**: Deno 2.x
-- **Framework**: Hono (web server)
-- **Deploy**: GitHub Pages (`https://jsr-probitas.github.io/documents`)
+- **Framework**: Hono
+- **Deploy**: GitHub Pages
 
 ## Commands
 
 ```bash
-deno task dev      # Start dev server with watch mode
-deno task start    # Start production server
-deno task check    # Type check all .ts files
-deno task verify   # Run fmt, lint, and check
-deno task build    # Build static site for deployment
+deno task dev      # Dev server with watch
+deno task verify   # Run fmt, lint, check, test
+deno task build    # Build static site
 ```
 
-## Deployment
-
-This project is deployed to **GitHub Pages** as a static site.
-
-### Build Process
-
-1. Run `deno task build` to generate static files in `dist/`
-2. GitHub Actions automatically deploys on push to main branch
-
-### Local Development
-
-- `deno task dev` - Start dev server with hot reload
-- `deno task start` - Start production server locally
-
-## Related Documentation
-
-- [Architecture](./architecture.md) - Site structure and design decisions
-- [Content](./content.md) - Documentation content guidelines
-
----
-
-## STRICT RULES (MUST FOLLOW)
-
-### 1. Git Commit Restriction
+## Pre-Completion Verification
 
-**NEVER commit without explicit user permission.**
-
-- Commits are forbidden by default
-- Only perform a commit ONCE when the user explicitly grants permission
-- After committing, MUST recite this rule:
-  > "Reminder: Commits are forbidden by default. I will not commit again unless
-  > explicitly permitted."
-
-### 2. Backup Before Destructive Operations
-
-**ALWAYS create a backup before any operation that may lose working tree
-state.**
-
-Examples: `git restore`, `git reset`, `git checkout` (with uncommitted changes),
-`git stash drop`, file deletion/overwrite of uncommitted work.
-
-### 3. Pre-Completion Verification
-
-BEFORE reporting task completion, run and ensure zero errors/warnings:
+BEFORE reporting task completion, run and ensure zero errors:
 
 ```bash
 deno task verify
 ```
 
-### 4. English for Version-Controlled Content
-
-**Use English for ALL content tracked by Git** (code, comments, documentation,
-commit messages).
-
-### 5. Worktree Isolation
-
-- **Stay in worktree**: Never leave `.worktrees/{branch}/` during worktree tasks
-- **No git stash**: Use backup branches instead (stash is shared across
-  worktrees)
-
-### 6. Reference Probitas Packages
+## Reference Probitas Packages
 
-When referencing `@probitas/*` API or documentation:
+When referencing `@probitas/*` API:
 
-- Use `deno doc --json jsr:@probitas/{package}` for API data
-- Check `../probitas/` for core framework source code
-- Check `../probitas-client/` for client package source code
+- Use `deno doc jsr:@probitas/{package}` for API data
+- Check `../probitas/` for core framework source
+- Check `../probitas-client/` for client package source

.claude/architecture.md

@@ -0,0 +1,32 @@
+---
+paths: "main.ts, lib/**/*.ts, templates/**/*.tsx, scripts/**/*.ts"
+---
+
+# Site Architecture
+
+## Directory Structure
+
+```
+documents/
+├── main.ts           # Entry point (Deno.serve)
+├── docs/             # Markdown documentation
+├── data/api/         # Generated from `deno doc --json`
+├── lib/              # Core modules (markdown, api-docs)
+├── templates/        # Hono JSX components
+└── scripts/          # Build and generation scripts
+```
+
+## Routes
+
+| Path                  | Description              |
+| --------------------- | ------------------------ |
+| `/`                   | Landing page             |
+| `/docs/{page}`        | Documentation pages      |
+| `/api/{package}`      | API reference            |
+
+## API Generation
+
+```bash
+# Generate API docs (run from scripts/generate-api-docs.ts)
+deno task generate-api
+```