Initial commit: Vertical Industry packages

odoo-bringout-oca-ocb-maintenance/doc/MODELS.md

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+# Models
+
+Detected core models and extensions in maintenance.
+
+```mermaid
+classDiagram
+    class maintenance_equipment
+    class maintenance_equipment_category
+    class maintenance_request
+    class maintenance_stage
+    class maintenance_team
+```
+
+Notes
+- Classes show model technical names; fields omitted for brevity.
+- Items listed under _inherit are extensions of existing models.