feat: account management overhaul + 7 issue resolutions (#147)

- Add smart JSON export/import with schema validation and deduplication
- Add per-account proxy configurations (Issue #79)
- Add advanced account sorting engine (Issues #126 & #99)
- Add compact horizontal layout, AI credits, inline model visibility (Issues #145 & #134)
- Add desktop push notifications for low quota (Issue #53)
- Fix Arch Linux AUR process detection bug (Issue #117)
- Default theme set to Dark Mode (it's better)
- UI Polishing: Improved sort dropdown and symmetrical dialog layouts
- Dev Mode: Resolved port conflicts and single-instance locks
- Updated README and README.zh-CN with new features

src/ipc/process/handler.ts

@@ -73,19 +73,17 @@ export async function isProcessRunning(): Promise<boolean> {
     const currentPid = process.pid;
 
     // Use find-process to search for Antigravity processes
-    // 'name' search type matches process name
-    const processMap = new Map<number, ProcessInfo>();
+    const allMatches: ProcessInfo[] = [];
     const searchNames = ['Antigravity', 'antigravity'];
+    if (platform === 'linux') {
+      searchNames.push('electron');
+    }
     let sawNoMatch = false;
 
     for (const searchName of searchNames) {
       try {
-        const matches = await findProcess('name', searchName, true);
-        for (const proc of matches) {
-          if (typeof proc.pid === 'number') {
-            processMap.set(proc.pid, proc);
-          }
-        }
+        const matches = await findProcess('name', searchName, false);
+        allMatches.push(...matches);
       } catch (error) {
         if (isPgrepNoMatchError(error)) {
           sawNoMatch = true;
@@ -95,6 +93,13 @@ export async function isProcessRunning(): Promise<boolean> {
       }
     }
 
+    const processMap = new Map<number, ProcessInfo>();
+    for (const proc of allMatches) {
+      if (typeof proc.pid === 'number') {
+        processMap.set(proc.pid, proc);
+      }
+    }
+
     const processes = Array.from(processMap.values());
     if (processes.length === 0 && sawNoMatch) {
       logger.debug('No Antigravity process found (pgrep returned 1)');
@@ -145,7 +150,27 @@ export async function isProcessRunning(): Promise<boolean> {
           return true;
         }
       } else {
-        // Linux: Check for antigravity in name or path (but not tools)
+        const nameLower = name.toLowerCase();
+        const cmdLower = cmd.toLowerCase();
+
+        if (nameLower === 'electron') {
+          // Stricter check for AUR/Electron wrapper:
+          // Must include antigravity in command line but NOT manager or tools
+          const isAntigravityApp =
+            (cmdLower.includes('/antigravity') ||
+              cmdLower.includes(' antigravity') ||
+              cmdLower.endsWith('antigravity')) &&
+            !cmdLower.includes('manager') &&
+            !cmdLower.includes('tools');
+
+          if (isAntigravityApp) {
+            logger.debug(
+              `Found Antigravity (AUR/electron) process: PID=${proc.pid}, name=${name}, cmd=${cmd.substring(0, 100)}`,
+            );
+            return true;
+          }
+        }
+
         if (
           (name.includes('antigravity') || cmd.includes('/antigravity')) &&
           !name.includes('tools')