[Command Menu] Fix record-selection command filtering in edit mode (#20034)

https://github.com/user-attachments/assets/fe1461c7-0d5c-4c6f-8c2e-2cf569e7de90

## What

Fix `RECORD_SELECTION` items leaking into the command menu when nothing
is selected, and unify how the menu renders in normal vs edit mode.

## The bug

`RECORD_SELECTION`-availability items were showing up even when
`numberOfSelectedRecords === 0`. New util
`doesCommandMenuItemMatchSelectionState` gates them, applied
consistently in the runtime provider and the editor.

## The refactor

`PinnedCommandMenuItemButtonsEditMode` was a 140-line near-duplicate of
`PinnedCommandMenuItemButtons` with its own (drifting) filter logic.
Killed it. Edit mode now flows through the same
`CommandMenuContextProvider` with a new `isInPreviewMode` flag — one
filter chain, one rendering path.

## Behavior in edit mode

**Header (pinned buttons in page header):**
- Runs the full filter chain — object metadata, page type, selection
state, page layout, *and the conditional availability expression*
- Buttons render at full styling but are inert via `pointer-events:
none` + `cursor: not-allowed`
- Preview now reflects exactly what users will see on the live page (not
a grayed-out approximation)

**Side panel editor:**
- New `useEditableCommandMenuItems` hook
- Same filters as runtime *minus* the conditional availability
expression and `FALLBACK` items — so it surfaces everything that's
actually configurable for this page context
- Still gates on selection state — if no records selected,
`RECORD_SELECTION` items are hidden from the editor too. Open to
feedback if we'd rather always show them so users can pin them ahead of
time.

## Misc

- `usePinnedCommandMenuItemsInlineLayout` — visible count now waits
until every item is measured before committing. Fixes a flash of wrong
counts on mount/resize
- Renamed `useCommandMenuContextApi` → `useCurrentCommandMenuContextApi`
— name now conveys it reads from the *current* scoped context store
- Copy: "Records selected" → "Record(s) selected"

packages/twenty-front/src/modules/command-menu-item/utils/__tests__/doesCommandMenuItemMatchSelectionState.test.ts

@@ -0,0 +1,36 @@
+import { doesCommandMenuItemMatchSelectionState } from '@/command-menu-item/utils/doesCommandMenuItemMatchSelectionState';
+import {
+  CommandMenuItemAvailabilityType,
+  type CommandMenuItemFieldsFragment,
+} from '~/generated-metadata/graphql';
+
+const buildCommandMenuItem = (
+  availabilityType: CommandMenuItemAvailabilityType,
+) =>
+  ({
+    availabilityType,
+  }) as CommandMenuItemFieldsFragment;
+
+describe('doesCommandMenuItemMatchSelectionState', () => {
+  it('should keep a non-record-selection item when no records are selected', () => {
+    const item = buildCommandMenuItem(CommandMenuItemAvailabilityType.GLOBAL);
+
+    expect(doesCommandMenuItemMatchSelectionState(false)(item)).toBe(true);
+  });
+
+  it('should hide a record-selection item when no records are selected', () => {
+    const item = buildCommandMenuItem(
+      CommandMenuItemAvailabilityType.RECORD_SELECTION,
+    );
+
+    expect(doesCommandMenuItemMatchSelectionState(false)(item)).toBe(false);
+  });
+
+  it('should keep a record-selection item when records are selected', () => {
+    const item = buildCommandMenuItem(
+      CommandMenuItemAvailabilityType.RECORD_SELECTION,
+    );
+
+    expect(doesCommandMenuItemMatchSelectionState(true)(item)).toBe(true);
+  });
+});

packages/twenty-front/src/modules/command-menu-item/utils/doesCommandMenuItemMatchSelectionState.ts

@@ -0,0 +1,9 @@
+import {
+  CommandMenuItemAvailabilityType,
+  type CommandMenuItemFieldsFragment,
+} from '~/generated-metadata/graphql';
+
+export const doesCommandMenuItemMatchSelectionState =
+  (hasSelectedRecords: boolean) => (item: CommandMenuItemFieldsFragment) =>
+    item.availabilityType !==
+      CommandMenuItemAvailabilityType.RECORD_SELECTION || hasSelectedRecords;