Initial commit: OCA Report packages (45 packages)

odoo-bringout-oca-report-print-send-pingen/doc/MODELS.md

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+# Models
+
+Detected core models and extensions in pingen.
+
+```mermaid
+classDiagram
+    class pingen_document
+    class ir_attachment
+    class res_company
+    class res_config_settings
+```
+
+Notes
+- Classes show model technical names; fields omitted for brevity.
+- Items listed under _inherit are extensions of existing models.