docs: clarify Hookify match case sensitivity

commands/hookify-help.md

@@ -126,7 +126,7 @@ the warning to stderr.
 
 ### Pattern Tips
 
-- use JavaScript regex syntax; matching is case-insensitive
+- use JavaScript regex syntax; `regex_match` is case-insensitive while literal operators are case-sensitive
 - for `bash`, match against the full command string
 - for `file`, a simple pattern matches the full file path
 - for changed text, use a `content`, `new_text`, or `old_text` condition

tests/docs/hookify-runtime-docs.test.js

@@ -56,6 +56,8 @@ function runTests() {
     const skill = read('skills/hookify-rules/SKILL.md');
 
     assert.ok(help.includes('simple `pattern` matches `file_path`'));
+    assert.ok(help.includes('`regex_match` is case-insensitive'));
+    assert.ok(help.includes('literal operators are case-sensitive'));
     assert.ok(skill.includes('Simple `event: file` patterns match `file_path`'));
     assert.ok(skill.includes('changed content requires explicit conditions'));
   })) passed++; else failed++;