Fix PyInstaller build issues and add right-click edit

## Fixes
- Web interface now loads correctly in built app (use sys._MEIPASS for bundled web files)
- Macro execution no longer locks up (use pyperclip clipboard for Unicode text support)
- Right-click context menu works (use Qt signals instead of fragile parent traversal)

## Changes
- web_server.py: Use get_resource_path() for web directory
- macro_manager.py: Use clipboard paste for text commands instead of typewrite
- gui/main_window.py: Add edit_requested/delete_requested signals to MacroButton
- pyproject.toml: Add pyperclip dependency
- All .spec files: Add pyperclip to hidden imports

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

gui/main_window.py

@@ -31,6 +31,10 @@ from web_server import WebServer
 class MacroButton(QPushButton):
     """Custom button widget for displaying a macro."""
 
+    # Signals for context menu actions
+    edit_requested = Signal(str)
+    delete_requested = Signal(str)
+
     def __init__(self, macro_id: str, macro: dict, parent=None):
         super().__init__(parent)
         self.macro_id = macro_id
@@ -103,9 +107,9 @@ class MacroButton(QPushButton):
 
         action = menu.exec_(event.globalPos())
         if action == edit_action:
-            self.parent().parent().parent().parent().edit_macro(self.macro_id)
+            self.edit_requested.emit(self.macro_id)
         elif action == delete_action:
-            self.parent().parent().parent().parent().delete_macro(self.macro_id)
+            self.delete_requested.emit(self.macro_id)
 
 
 class MainWindow(QMainWindow):
@@ -441,6 +445,8 @@ class MainWindow(QMainWindow):
         for i, (macro_id, macro) in enumerate(filtered):
             btn = MacroButton(macro_id, macro)
             btn.clicked.connect(lambda checked, mid=macro_id: self.execute_macro(mid))
+            btn.edit_requested.connect(self.edit_macro)
+            btn.delete_requested.connect(self.delete_macro)
             layout.addWidget(btn, i // cols, i % cols)
 
     def on_tab_changed(self, index):