docs: improve installation and permission instructions

- add security note with xattr command to bypass Gatekeeper
- update permission section to mention auto-prompt on first launch
- add menu bar icon as alternative way to access permission guide
- add mise tasks for resetting accessibility and removing quarantine

Author: mfyuu

PressViz/AppDelegate.swift

@@ -30,7 +30,9 @@ final class AppDelegate: NSObject, NSApplicationDelegate {
             AppSettings.shared.hasCompletedOnboarding = true
             startVisualization()
         } else {
-            // 権限がない場合は監視を開始して、付与されたら自動で開始
+            // ネイティブダイアログを表示（BundleIDごとに1回のみ有効）
+            permissionManager.requestAccessibility()
+            // 権限付与を監視して、付与されたら自動で開始
             permissionManager.startMonitoring()
         }
     }

README.md

@@ -9,6 +9,16 @@ A native macOS app for visualizing keyboard presses.
 3. Drag PressViz to your Applications folder
 4. Launch PressViz from Applications
 
+### Security Note
+
+PressViz is not notarized by Apple. On first launch, macOS may block the app.
+
+To allow it, run this command in Terminal:
+
+```bash
+xattr -cr /Applications/PressViz.app
+```
+
 ### Requirements
 
 - macOS 26.2+
@@ -17,8 +27,10 @@ A native macOS app for visualizing keyboard presses.
 
 PressViz requires **Accessibility** permission to monitor keyboard input.
 
-1. Open System Settings > Privacy & Security > Accessibility
-2. Enable PressViz
+On first launch, macOS will prompt you to grant permission. If you dismissed the prompt:
+
+- Click the PressViz icon in the menu bar to open the permission guide, or
+- Enable manually: System Settings > Privacy & Security > Accessibility
 
 ## Development
 

mise.toml

@@ -46,3 +46,11 @@ create-dmg \
 
 echo "Created ${APP_NAME}.dmg"
 """
+
+[tasks.reset-accessibility]
+description = "Reset Accessibility permission for PressViz"
+run = "tccutil reset Accessibility com.mfyuu.PressViz"
+
+[tasks.remove-quarantine]
+description = "Remove quarantine attribute from PressViz.app"
+run = "xattr -cr /Applications/PressViz.app"