fix(macos): handle missing clawdis CLI for health check

apps/macos/Sources/Clawdis/HealthStore.swift

@@ -93,6 +93,12 @@ final class HealthStore: ObservableObject {
         self.isRefreshing = true
         defer { self.isRefreshing = false }
 
+        guard CommandResolver.clawdisExecutable() != nil else {
+            self.lastError = "clawdis CLI not found; install the CLI (pnpm) or symlink it into PATH"
+            if onDemand { self.snapshot = nil }
+            return
+        }
+
         let response = await ShellRunner.run(
             command: CommandResolver.clawdisCommand(subcommand: "health", extraArgs: ["--json"]),
             cwd: nil,

apps/macos/Sources/Clawdis/Utilities.swift

@@ -176,6 +176,7 @@ enum CLIInstaller {
 
 enum CommandResolver {
     private static let projectRootDefaultsKey = "clawdis.relayProjectRootPath"
+    private static let helperName = "clawdis"
 
     static func projectRoot() -> URL {
         if let stored = UserDefaults.standard.string(forKey: self.projectRootDefaultsKey),
@@ -223,8 +224,12 @@ enum CommandResolver {
         return nil
     }
 
+    static func clawdisExecutable() -> String? {
+        self.findExecutable(named: self.helperName)
+    }
+
     static func clawdisCommand(subcommand: String, extraArgs: [String] = []) -> [String] {
-        if let clawdisPath = self.findExecutable(named: "clawdis") {
+        if let clawdisPath = self.clawdisExecutable() {
             return [clawdisPath, subcommand] + extraArgs
         }
         if let node = self.findExecutable(named: "node") {