Update package configuration and standardize env variable naming

- Standardize SHARP_API_KEY as primary environment variable
- Maintain SHARPAPI_KEY as backward-compatible fallback

Author: makowskid

.gitignore

@@ -0,0 +1,9 @@
+/vendor/
+composer.lock
+.idea
+.DS_Store
+node_modules/
+npm-debug.log
+yarn-error.log
+coverage
+.phpunit.result.cache

composer.json

@@ -21,7 +21,7 @@
     ],
     "require": {
         "php": ">=8.0",
-        "sharpapi/php-core": "^1.0.2",
+        "sharpapi/php-core": "^1.4.0",
         "guzzlehttp/guzzle": "^7.0|^7.9|^7.10"
     },
     "autoload": {

src/CLAUDE.md

@@ -0,0 +1,11 @@
+<claude-mem-context>
+# Recent Activity
+
+<!-- This section is auto-generated by claude-mem. Edit content outside the tags. -->
+
+### Jan 10, 2026
+
+| ID | Time | T | Title | Read |
+|----|------|---|-------|------|
+| #133 | 8:10 PM | 🔵 | PhoneDetectorClient Minimal Single-Parameter Method Signature | ~444 |
+</claude-mem-context>