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>

.claude/settings.json

@@ -0,0 +1,10 @@
+{
+  "permissions": {
+    "allow": [
+      "Skill(job-application-assistant)",
+      "Bash(bun run:*)",
+      "Bash(python salary_lookup.py:*)",
+      "Bash(python3 salary_lookup.py:*)"
+    ]
+  }
+}

.claude/settings.local.json

@@ -1,11 +0,0 @@
-{
-  "permissions": {
-    "allow": [
-      "Skill(job-application-assistant)",
-      "Bash(python3:*)",
-      "Bash(python:*)",
-      "Bash(curl:*)",
-      "Bash(bun:*)"
-    ]
-  }
-}