feat: remove "Agent Tools" from side navigation and related components

- Deleted the "Agent Tools" navigation item from the sidebar.
- Updated keyboard shortcuts and app store types to reflect the removal.
- Cleaned up imports and references in relevant files.
- Retained the `agent-tools-view.tsx` component for potential future use.

apps/app/src/store/app-store.ts

@@ -9,7 +9,6 @@ export type ViewMode =
   | "board"
   | "agent"
   | "settings"
-  | "tools"
   | "interview"
   | "context"
   | "profiles"
@@ -113,7 +112,6 @@ export interface KeyboardShortcuts {
   agent: string;
   spec: string;
   context: string;
-  tools: string;
   settings: string;
   profiles: string;
 
@@ -139,7 +137,6 @@ export const DEFAULT_KEYBOARD_SHORTCUTS: KeyboardShortcuts = {
   agent: "A",
   spec: "D",
   context: "C",
-  tools: "T",
   settings: "S",
   profiles: "M",