CommandMenuItem overridable entity (#21486)

## Context
Second PR of the overridable-entities track (after #21436 for views):
command menu items become overridable so that edits on non-owned items
are stored as overrides instead of mutating the row, and
deletion/deactivation becomes reversible.

 ## What this does

- `CommandMenuItemEntity` now extends
`OverridableEntity<CommandMenuItemOverrides>` (adds `isActive` +
`overrides`). All editable properties are overridable for now (to
discuss).
- **Update**: mutations on a command item not owned by the caller
(standard items) are written into `overrides`; reads merge them in the
DTO. The command palette edit mode (pin,
reorder, shortLabel) now preserves standard values, "Reset label to
default" gains true post-save semantics.
- **Delete**: protected items are deactivated (`isActive = false`)
instead of deleted; custom items still hard-delete.
- **Object deactivate/enable toggle**: now flips `isActive` on the
command item (merged into the main migration call) instead of
delete/recreate; a create-if-missing fallback covers legacy deactivated
objects.
- **Front**: inactive command items are filtered out of the palette
selector.


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---------

Co-authored-by: Charles Bochet <charles@twenty.com>

packages/twenty-server/src/engine/metadata-modules/flat-entity/constant/__tests__/__snapshots__/all-universal-flat-entity-properties-to-compare-and-stringify.constant.spec.ts.snap

@@ -41,10 +41,13 @@ exports[`ALL_UNIVERSAL_FLAT_ENTITY_PROPERTIES_TO_COMPARE_AND_STRINGIFY should ma
       "engineComponentKey",
       "payload",
       "hotKeys",
+      "isActive",
+      "universalOverrides",
     ],
     "propertiesToStringify": [
       "payload",
       "hotKeys",
+      "universalOverrides",
     ],
   },
   "connectionProvider": {

packages/twenty-server/src/engine/metadata-modules/flat-entity/constant/all-entity-properties-configuration-by-metadata-name.constant.ts

@@ -1096,27 +1096,37 @@ export const ALL_ENTITY_PROPERTIES_CONFIGURATION_BY_METADATA_NAME = {
       toCompare: true,
       toStringify: false,
       universalProperty: undefined,
+      isOverridable: true,
+    },
+    icon: {
+      toCompare: true,
+      toStringify: false,
+      universalProperty: undefined,
+      isOverridable: true,
     },
-    icon: { toCompare: true, toStringify: false, universalProperty: undefined },
     shortLabel: {
       toCompare: true,
       toStringify: false,
       universalProperty: undefined,
+      isOverridable: true,
     },
     position: {
       toCompare: true,
       toStringify: false,
       universalProperty: undefined,
+      isOverridable: true,
     },
     isPinned: {
       toCompare: true,
       toStringify: false,
       universalProperty: undefined,
+      isOverridable: true,
     },
     availabilityType: {
       toCompare: true,
       toStringify: false,
       universalProperty: undefined,
+      isOverridable: true,
     },
     conditionalAvailabilityExpression: {
       toCompare: true,
@@ -1127,6 +1137,7 @@ export const ALL_ENTITY_PROPERTIES_CONFIGURATION_BY_METADATA_NAME = {
       toCompare: true,
       toStringify: false,
       universalProperty: 'availabilityObjectMetadataUniversalIdentifier',
+      isOverridable: true,
     },
     createdAt: {
       toCompare: false,
@@ -1147,6 +1158,7 @@ export const ALL_ENTITY_PROPERTIES_CONFIGURATION_BY_METADATA_NAME = {
       toCompare: true,
       toStringify: false,
       universalProperty: undefined,
+      isOverridable: true,
     },
     payload: {
       toCompare: true,
@@ -1157,6 +1169,7 @@ export const ALL_ENTITY_PROPERTIES_CONFIGURATION_BY_METADATA_NAME = {
       toCompare: true,
       toStringify: true,
       universalProperty: undefined,
+      isOverridable: true,
     },
     workflowVersionId: {
       toCompare: false,
@@ -1167,6 +1180,18 @@ export const ALL_ENTITY_PROPERTIES_CONFIGURATION_BY_METADATA_NAME = {
       toCompare: false,
       toStringify: false,
       universalProperty: 'pageLayoutUniversalIdentifier',
+      isOverridable: true,
+    },
+    isActive: {
+      toCompare: true,
+      toStringify: false,
+      universalProperty: undefined,
+      isOverridable: false,
+    },
+    overrides: {
+      toCompare: true,
+      toStringify: true,
+      universalProperty: 'universalOverrides',
     },
   },
   navigationMenuItem: {