Enable Code button when viewing historical work orders (#4280)

* Enable Code button when viewing historical work orders (#4279)

Fixes bug where Code button was disabled when viewing historical work
orders with version != latest. Users can now open FullScreenIDE to view
code and logs together for debugging failed runs.

Changes:
- Remove isReadOnly check from Code button disabled condition
- Update tooltip to "View read-only code and logs" for clarity
- Show keyboard shortcut (Cmd+E) in all states
- Add test for Code button with pinned version parameter

* Update CHANGELOG for #4279

* Simplify Code button tooltip text

Remove conditional tooltip logic and always show 'Open full-screen code
editor' with keyboard shortcut, regardless of state.

* its not full screen anymore ;-)

---------

Co-authored-by: Taylor Downs <taylor@openfn.org>

Author: lmac-1

CHANGELOG.md

@@ -21,6 +21,9 @@ and this project adheres to
 
 ### Fixed
 
+- Fixed Code button being disabled when viewing historical work orders
+  [#4279](https://github.com/OpenFn/lightning/issues/4279)
+
 ## [2.15.5] - 2025-12-23
 
 ### Fixed

assets/js/collaborative-editor/components/inspector/JobInspector.tsx

@@ -81,19 +81,9 @@ export function JobInspector({
           <Tooltip
             content={
               <>
-                {isIDEOpen
-                  ? 'IDE is already open'
-                  : isReadOnly
-                    ? 'Cannot edit in read-only mode'
-                    : 'Open full-screen code editor '}
-                {!isIDEOpen && !isReadOnly && (
-                  <>
-                    {' '}
-                    {'( '}
-                    <ShortcutKeys keys={['mod', 'e']} />
-                    {' )'}
-                  </>
-                )}
+                Open code editor {'( '}
+                <ShortcutKeys keys={['mod', 'e']} />
+                {' )'}
               </>
             }
             side="top"
@@ -102,7 +92,7 @@ export function JobInspector({
               <Button
                 variant="primary"
                 onClick={() => updateSearchParams({ panel: 'editor' })}
-                disabled={isIDEOpen || isReadOnly}
+                disabled={isIDEOpen}
               >
                 Code
               </Button>

assets/test/collaborative-editor/components/inspector/JobInspector.test.tsx

@@ -362,6 +362,56 @@ describe('JobInspector - Footer Button States', () => {
     expect(codeButton).not.toBeDisabled();
   });
 
+  test('Code button is enabled when viewing pinned version', () => {
+    // Set URL with version parameter to simulate viewing historical work order
+    urlState.setParams({ v: '5' });
+
+    // Set edit permissions
+    act(() => {
+      (mockChannel as any)._test.emit('session_context', {
+        user: null,
+        project: null,
+        config: { require_email_verification: false },
+        permissions: {
+          can_edit_workflow: true,
+          can_run_workflow: true,
+          can_write_webhook_auth_method: true,
+        },
+        latest_snapshot_lock_version: 6,
+        project_repo_connection: null,
+        webhook_auth_methods: [],
+        workflow_template: null,
+        has_read_ai_disclaimer: false,
+      });
+    });
+
+    const job = workflowStore.getSnapshot().jobs[0];
+    const mockOnClose = vi.fn();
+    const mockOnOpenRunPanel = vi.fn();
+
+    render(
+      <JobInspector
+        job={job}
+        onClose={mockOnClose}
+        onOpenRunPanel={mockOnOpenRunPanel}
+      />,
+      {
+        wrapper: createWrapper(
+          workflowStore,
+          credentialStore,
+          sessionContextStore,
+          adaptorStore,
+          awarenessStore
+        ),
+      }
+    );
+
+    const codeButton = screen.getByRole('button', { name: /code/i });
+
+    // Code button should be enabled even when viewing pinned version
+    expect(codeButton).not.toBeDisabled();
+  });
+
   test('Delete button is disabled when job has downstream dependencies', () => {
     // Create a workflow with two jobs where job-2 depends on job-1
     const ydocWithDeps = createWorkflowYDoc({