feat(commit-ai): enhance commit message generation and caching

Improve the commit message generation process by adding a caching mechanism and refining the input handling. This change aims to enhance performance and prevent redundant computations when generating commit messages based on staged changes.

- **src-tauri/crates/commit_ai/src/cloud.rs**:
  - Introduced `looks_like_diff_echo` function to detect if the model's output is a diff instead of a commit message.
  - Updated `openai_compatible_request` and `generate_anthropic` to utilize the new function for error handling.

- **src-tauri/crates/commit_ai/src/lib.rs**:
  - Added `LocalGenerationProfile` enum for managing different generation profiles.
  - Implemented caching for generated messages to avoid redundant processing.
  - Updated `generate_commit_message` to incorporate caching logic.

- **src-tauri/src/git.rs**:
  - Added `staged_diff_local` function to handle local profile generation and exclude specific lock files from the diff.
  - Modified `commit_ai_generate` to accept and process the local generation profile.

- **src/App.svelte**:
  - Added `lastLocalAiGeneratedMessage` state to track the last generated message and prevent unnecessary updates.

- **.claude/settings.local.json**:
  - Updated settings to include additional commands for better functionality.

src/lib/git.ts

@@ -1,6 +1,7 @@
 import { invoke } from "@tauri-apps/api/core";
 
 import type {
+  CommitAiLocalProfile,
   CommitAiProvider,
   CommitAiStatus,
   ConflictFile,
@@ -112,6 +113,7 @@ export function commitAiLocalModels(): Promise<LocalModelOption[]> {
 export interface CommitAiGenerateOptions {
   notes?: string;
   provider: CommitAiProvider;
+  localProfile?: CommitAiLocalProfile;
   model?: string;
   apiKey?: string;
   baseUrl?: string;
@@ -122,6 +124,7 @@ export function commitAiGenerate(path: string, options: CommitAiGenerateOptions)
     path,
     notes: options.notes,
     provider: options.provider,
+    localProfile: options.localProfile,
     model: options.model,
     apiKey: options.apiKey,
     baseUrl: options.baseUrl,