Tighten pre-approved permissions and untrack settings.local.json (#27)

* fix: move scoped permissions to settings.json, drop curl, untrack settings.local.json

Addresses #23:
- Remove pre-approved Bash(curl:*) - no agent workflow uses curl, and a
  toolkit that routinely feeds untrusted job postings to the model should
  not ship a pre-approved exfiltration-capable command
- Move shared permissions to .claude/settings.json (committed by
  convention) and scope them tighter: Bash(bun run:*) for the job portal
  CLIs, Bash(python/python3 salary_lookup.py:*) for salary lookups
- Untrack .claude/settings.local.json - it was committed despite being
  listed in .gitignore; the file stays local for personal overrides

Reported-by: @josealfonsomora

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* docs(setup): warn existing cloners about stale settings.local.json

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

README.md

@@ -117,7 +117,7 @@ ai-job-search/
 │   │   │   └── 07-interview-prep.md   # STAR examples + interview framework
 │   │   ├── job-scraper/               # Job search orchestration
 │   │   └── upskill/                   # /upskill skill gap analysis and learning plan
-│   └── settings.local.json            # Claude Code permissions
+│   └── settings.json                  # Claude Code permissions (shared, scoped)
 ├── .agents/skills/                    # Job portal CLI tools (Denmark)
 │   ├── jobbank-search/                # Akademikernes Jobbank
 │   ├── jobdanmark-search/             # Jobdanmark.dk