Initial commit: OCA Storage packages (17 packages)

odoo-bringout-oca-storage-fs_attachment/doc/MODELS.md

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+# Models
+
+Detected core models and extensions in fs_attachment.
+
+```mermaid
+classDiagram
+    class fs_file_gc
+    class fs_storage
+    class ir_attachment
+    class ir_binary
+    class ir_model
+    class ir_model_fields
+```
+
+Notes
+- Classes show model technical names; fields omitted for brevity.
+- Items listed under _inherit are extensions of existing models.