feat: add S3-compatible storage provider (MinIO, Ceph, R2, etc.)

Adds a new 'S3-Compatible Storage' provider that works with any
S3-API-compatible object storage service, including MinIO, Ceph,
Cloudflare R2, Backblaze B2, and others.

Changes:
- New provider class: classes/providers/storage/s3-compatible-provider.php
  - Provider key: s3compatible
  - Reads user-configured endpoint URL from settings
  - Uses path-style URL access (required by most S3-compatible services)
  - Supports credentials via AS3CF_S3COMPAT_ACCESS_KEY_ID /
    AS3CF_S3COMPAT_SECRET_ACCESS_KEY wp-config.php constants
  - Disables AWS-specific features (Block Public Access, Object Ownership)
- New provider SVG icons (s3compatible.svg, -link.svg, -round.svg)
- Registered provider in main plugin class with endpoint setting support
- Updated StorageProviderSubPage to show endpoint URL input for S3-compatible
- Built pro settings bundle with rollup (Svelte 4.2.19)
- Added package.json and updated rollup.config.mjs for pro-only builds

vendor/Gcp/ramsey/collection/conventional-commits.json

@@ -0,0 +1,22 @@
+{
+    "typeCase": "kebab",
+    "types": [
+        "chore",
+        "ci",
+        "docs",
+        "feat",
+        "fix",
+        "refactor",
+        "security",
+        "style",
+        "test"
+    ],
+    "scopeCase": "kebab",
+    "scopeRequired": false,
+    "scopes": [],
+    "descriptionCase": null,
+    "descriptionEndMark": "",
+    "bodyRequired": false,
+    "bodyWrapWidth": 72,
+    "requiredFooters": []
+}