fix(skills): make git-workflow script paths portable

All four git-feature-* skills hardcoded /Users/torcsi/dev/kicad-wasm/ for
the helper-script invocations and one documentation example. That path
only resolved on the original author's machine — anyone else picking up
/git-feature-{start,commit,sync,finish} would hit "No such file or
directory" before the first pre-flight check ran.

Replaces the absolute paths with relative ones (`bash scripts/...`) and
rewrites the rebase-conflict handoff message in git-feature-sync.md to use
`git -C kicad ...` style instead of a hardcoded cd.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

.claude/skills/git-feature-commit/SKILL.md

@@ -13,7 +13,7 @@ Optional positional message string. If omitted, ask the user for a message via `
 
 ## Steps
 
-1. **Status snapshot.** Run `bash /Users/torcsi/dev/kicad-wasm/scripts/git-workflow/repo-status.sh` to see which repos have changes.
+1. **Status snapshot.** Run `bash scripts/git-workflow/repo-status.sh` to see which repos have changes.
 
 2. **Show per-repo diff overview to the user first** (before any commit). For each repo, run:
    - `git -C <path> status --short`