Update app_spec.txt and coding_prompt.md for improved clarity and consistency

- Updated references to `app_spec.txt` and `feature_list.json` in app_spec.txt to include the correct path.
- Enhanced coding_prompt.md by incorporating testing utilities for better test management and readability.
- Added new utility functions in tests/utils.ts to streamline test interactions.

This commit aims to improve documentation accuracy and maintainability of testing practices.

app/electron/preload.js

@@ -102,6 +102,14 @@ contextBridge.exposeInMainWorld("electronAPI", {
     verifyFeature: (projectPath, featureId) =>
       ipcRenderer.invoke("auto-mode:verify-feature", { projectPath, featureId }),
 
+    // Resume a specific feature with previous context
+    resumeFeature: (projectPath, featureId) =>
+      ipcRenderer.invoke("auto-mode:resume-feature", { projectPath, featureId }),
+
+    // Check if context file exists for a feature
+    contextExists: (projectPath, featureId) =>
+      ipcRenderer.invoke("auto-mode:context-exists", { projectPath, featureId }),
+
     // Listen for auto mode events
     onEvent: (callback) => {
       const subscription = (_, data) => callback(data);