docs: update analyze and quality CLI reference for multi-package support

[yvonnedevlinrh]

• Severity: Low
• Component: Website CLI reference pages
• Related PR: opsx/analyze-multi-package on unbound-force/gaze
• Related issue: Bug: analyze ./... silently analyzes only the first matched package #107

Summary

gaze analyze and gaze quality now accept multiple package patterns
including ./... wildcards. The website CLI reference pages need updating
to reflect this change.

What Changed

Both commands changed from ExactArgs(1) (single package) to
MinimumNArgs(1) (one or more packages). Wildcard patterns like ./...
are expanded to all matching packages. Packages without test files are
skipped with a warning in gaze quality.

The in-repo docs have already been updated:

• docs/reference/cli/analyze.md — synopsis [packages...], multi-package examples
• docs/reference/cli/quality.md — synopsis [packages...], skip-without-tests behavior
• README.md — "Single package loading" known limitation removed

Pages to Update

1. CLI Reference: analyze — change synopsis from gaze analyze [package]
   to gaze analyze [packages...], update argument description, add ./... example
2. CLI Reference: quality — change synopsis from gaze quality [package]
   to gaze quality [packages...], document skip-without-tests behavior
3. Getting Started / Quickstart — gaze analyze ./... now works as documented
   (previously silently analyzed only the first package)
4. Any page referencing the single-package limitation