Infrastructure: Search Field & Signal Routing

[mrpilot2]

Parent PRD

#73

What to build

A concise description of this vertical slice. Describe the end-to-end behavior, not layer-by-layer implementation. Reference specific sections of the parent PRD rather than duplicating content.

Add the QLineEdit search field to SettingsDialog.ui. Update the interfaces and controllers (SettingsDialogController, SettingsDialogChangePageController) to pass the search string from the GUI to the backend.

Acceptance criteria

• QLineEdit is visible in the Settings Dialog
• Typing in the search field triggers a signal
• The search string reaches the ShowSettingsDialog core class

Blocked by

None - can start immediately

User stories addressed

• User story 1