Fix Story 12: Claude API key storage now working

- Fixed silent API key save failure by switching from keyring to Tauri store
- Removed keyring dependency (didn't work in macOS dev mode for unsigned apps)
- Implemented reliable cross-platform storage using tauri-plugin-store
- Added pendingMessageRef to preserve user message during API key dialog flow
- Refactored sendMessage to accept optional message parameter for retry
- Removed all debug logging and test code
- Removed unused entitlements.plist and macOS config
- API key now persists correctly between sessions
- Auto-retry after saving key works properly

Story 12 complete and archived.

src-tauri/src/commands/chat.rs

@@ -7,6 +7,7 @@ use crate::state::SessionState;
 use serde::Deserialize;
 use serde_json::json;
 use tauri::{AppHandle, Emitter, State};
+use tauri_plugin_store::StoreExt;
 
 #[derive(Deserialize)]
 pub struct ProviderConfig {
@@ -25,32 +26,73 @@ pub async fn get_ollama_models(base_url: Option<String>) -> Result<Vec<String>,
 }
 
 #[tauri::command]
-pub async fn get_anthropic_api_key_exists() -> Result<bool, String> {
-    match keyring::Entry::new("living-spec-anthropic-api-key", "default") {
-        Ok(entry) => Ok(entry.get_password().is_ok()),
-        Err(e) => Err(format!("Failed to access keychain: {}", e)),
+pub async fn get_anthropic_api_key_exists(app: AppHandle) -> Result<bool, String> {
+    let store = app
+        .store("store.json")
+        .map_err(|e| format!("Failed to access store: {}", e))?;
+
+    match store.get("anthropic_api_key") {
+        Some(value) => {
+            if let Some(key) = value.as_str() {
+                Ok(!key.is_empty())
+            } else {
+                Ok(false)
+            }
+        }
+        None => Ok(false),
     }
 }
 
 #[tauri::command]
-pub async fn set_anthropic_api_key(api_key: String) -> Result<(), String> {
-    let entry = keyring::Entry::new("living-spec-anthropic-api-key", "default")
-        .map_err(|e| format!("Failed to create keychain entry: {}", e))?;
+pub async fn set_anthropic_api_key(app: AppHandle, api_key: String) -> Result<(), String> {
+    let store = app
+        .store("store.json")
+        .map_err(|e| format!("Failed to access store: {}", e))?;
 
-    entry
-        .set_password(&api_key)
-        .map_err(|e| format!("Failed to store API key: {}", e))?;
+    store.set("anthropic_api_key", json!(api_key));
+
+    store
+        .save()
+        .map_err(|e| format!("Failed to save store: {}", e))?;
+
+    // Verify it was saved
+    match store.get("anthropic_api_key") {
+        Some(value) => {
+            if let Some(retrieved) = value.as_str() {
+                if retrieved != api_key {
+                    return Err("Retrieved key does not match saved key".to_string());
+                }
+            } else {
+                return Err("Stored value is not a string".to_string());
+            }
+        }
+        None => {
+            return Err("API key was saved but cannot be retrieved".to_string());
+        }
+    }
 
     Ok(())
 }
 
-fn get_anthropic_api_key() -> Result<String, String> {
-    let entry = keyring::Entry::new("living-spec-anthropic-api-key", "default")
-        .map_err(|e| format!("Failed to access keychain: {}", e))?;
+fn get_anthropic_api_key(app: &AppHandle) -> Result<String, String> {
+    let store = app
+        .store("store.json")
+        .map_err(|e| format!("Failed to access store: {}", e))?;
 
-    entry
-        .get_password()
-        .map_err(|_| "Anthropic API key not found. Please set your API key.".to_string())
+    match store.get("anthropic_api_key") {
+        Some(value) => {
+            if let Some(key) = value.as_str() {
+                if key.is_empty() {
+                    Err("Anthropic API key is empty. Please set your API key.".to_string())
+                } else {
+                    Ok(key.to_string())
+                }
+            } else {
+                Err("Stored API key is not a string".to_string())
+            }
+        }
+        None => Err("Anthropic API key not found. Please set your API key.".to_string()),
+    }
 }
 
 #[tauri::command]
@@ -133,7 +175,7 @@ pub async fn chat(
         // Call LLM with streaming
         let response = if is_claude {
             // Use Anthropic provider
-            let api_key = get_anthropic_api_key()?;
+            let api_key = get_anthropic_api_key(&app)?;
             let anthropic_provider = AnthropicProvider::new(api_key);
             anthropic_provider
                 .chat_stream(&app, &config.model, &current_history, tools, &mut cancel_rx)