fix(filter_repos): match full repo paths and normalize trailing slashes

[tony]

Summary

• Fix filter_repos() so that passing a full repo path (e.g. /home/d/study/typescript/tanstack-router, as produced by shell glob expansion) correctly matches the configured repository — previously only the parent directory was matched against the pattern, so exact repo paths never resolved.
• Fix workspace-root patterns with a trailing slash (e.g. ~/study/typescript/) silently returning no results due to the slash surviving into the fnmatch comparison against the normalized stored path.
• Fix tilde and $HOME patterns (e.g. ~/study/typescript/tanstack-router) not matching stored absolute paths by expanding them via the existing expand_dir() before comparison.
• Add two regression tests for the new matching modes: filtering by exact full repo path, and filtering by workspace root with a trailing slash.

Root cause

filter_repos() compared only pathlib.Path(r["path"]).parent against the pattern — designed for wildcard workspace patterns like *github_projects*. This broke when the shell expanded a glob such as ~/study/typescript/tanstack-* into a list of absolute repo paths before handing them to vcspull: discover found those repos in config via dict-key lookup, but sync could not.

Changes

src/vcspull/config.py — filter_repos() path block:

• Normalize the pattern through pathlib.Path to strip trailing slashes
• Expand ~ / $HOME via expand_dir() when present, so tilde patterns match stored absolute paths
• OR the existing parent-dir fnmatch with a new full-path fnmatch, making exact repo paths resolve without breaking any existing wildcard behavior

Design decisions

OR semantics, not replacement: matching against both r["path"].parent (existing) and r["path"] (new) is strictly additive — it can only produce more matches. All existing wildcard tests continue to pass unchanged.

Reuse expand_dir(): already defined in the same module with expandvars + expanduser semantics; no duplication needed.

Test plan

• test_filter_dir_exact_repo_path — full absolute repo path resolves to the correct entry
• test_filter_dir_workspace_root_trailing_slash — workspace root with trailing slash resolves all repos under it
• test_filter_dir — existing wildcard pattern (*github_project*) still passes
• uv run ruff check . --fix --show-fixes — no lint errors
• uv run ruff format . — no formatting changes
• uv run mypy — no type errors
• uv run py.test --reruns 0 — full suite passes

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.31%. Comparing base (e6a62d9) to head (cfc5321).

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #539      +/-   ##
==========================================
+ Coverage   83.30%   83.31%   +0.01%     
==========================================
  Files          32       32              
  Lines        4492     4496       +4     
  Branches      903      904       +1     
==========================================
+ Hits         3742     3746       +4     
  Misses        499      499              
  Partials      251      251              

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.