docs: rename the native provider to @soulcraft/cor across public docs and JSDoc

The 3.0 native engine ships as @soulcraft/cor (brainy 8.x <-> cor 3.x are a
version-matched pair); the old @soulcraft/cortex package stays on the 2.x/7.x
line. Public docs and .d.ts-visible comments now name the correct package.
Historical 2.x contract references (e.g. the 2.3.1 read-side fallback) keep
the old name deliberately.

src/storage/adapters/baseStorageAdapter.ts

@@ -61,7 +61,7 @@ export abstract class BaseStorageAdapter implements StorageAdapter {
 
   // Vector Index Persistence (Brainy 8.0 — algorithm-neutral surface).
   // Concrete adapters persist the per-entity HNSW graph node (level + connections)
-  // under these methods. Cortex's DiskANN-style native vector index doesn't use
+  // under these methods. Cor's DiskANN-style native vector index doesn't use
   // them (it persists its own single mmap'd `.dkann` file under
   // `_system/vector-index/<shard>.dkann` per BRAINY-8.0-RENAME-COORDINATION § B.2).
 

src/storage/adapters/fileSystemStorage.ts

@@ -1251,7 +1251,7 @@ export class FileSystemStorage extends BaseStorage {
    * The key's "/"-separated segments become nested directories and the file is
    * suffixed with `.bin`, e.g. `"graph-lsm/source/sstable-123"` →
    * `<rootDir>/_blobs/graph-lsm/source/sstable-123.bin`. This convention is
-   * shared with cortex's `MmapFileSystemStorage` so native code and the TS layer
+   * shared with cor's `MmapFileSystemStorage` so native code and the TS layer
    * agree on exactly where each blob lives.
    *
    * @param key - The blob key.