feat(cli): Add vcspull search command with rg-style field-scoped queries

[tony]

Summary

Add a new vcspull search subcommand for quickly finding repositories across your configuration using ripgrep-inspired query syntax.

Key features:

• Field-scoped queries - Target specific fields with prefixes: name:django, url:github, path:code, workspace:~/projects
• Regex by default - All patterns use Python regex, making complex matches easy
• Smart matching modes:
  • -i/--ignore-case - Force case-insensitive
  • -S/--smart-case - Case-insensitive unless pattern has uppercase (like rg)
  • -F/--fixed-strings - Literal string matching
  • --word-regexp - Match whole words only
• Boolean logic:
  • Default AND - all terms must match
  • --any - OR matching (any term matches)
  • -v/--invert-match - Show non-matching repos
• Output formats:
  • Human-readable with match highlighting
  • --json - Single JSON array for scripting
  • --ndjson - Streaming newline-delimited JSON

Examples

# Basic search across all fields
vcspull search django

# Field-scoped queries
vcspull search name:django url:github

# Literal URL matching
vcspull search --fixed-strings 'git+https://github.com/org/repo.git'

# Find repos NOT on GitHub
vcspull search -v url:github

# Case-insensitive OR search
vcspull search -i --any django flask pyramid

Changes

• src/vcspull/cli/search.py - New search implementation with query parsing, pattern compilation, and output formatting
• src/vcspull/cli/__init__.py - CLI integration and help examples
• src/vcspull/cli/_formatter.py - New flags for help formatting
• tests/cli/test_search.py - Comprehensive test coverage
• docs/cli/search.md - Full command documentation
• docs/api/cli/search.md - API reference
• README.md - Usage examples

Test plan

• uv run ruff format .
• uv run ruff check . --fix --show-fixes
• uv run mypy
• uv run py.test

[codecov]

Codecov Report

❌ Patch coverage is 91.50943% with 18 lines in your changes missing coverage. Please review.
✅ Project coverage is 80.42%. Comparing base (3528647) to head (d219ee4).
⚠️ Report is 6 commits behind head on master.

Files with missing lines	Patch %	Lines
src/vcspull/cli/search.py	91.50%	11 Missing and 7 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #494      +/-   ##
==========================================
+ Coverage   79.24%   80.42%   +1.18%     
==========================================
  Files          15       16       +1     
  Lines        1980     2192     +212     
  Branches      404      454      +50     
==========================================
+ Hits         1569     1763     +194     
- Misses        267      278      +11     
- Partials      144      151       +7     

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[tony]

Code review

No issues found. Checked for bugs and CLAUDE.md compliance.

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