feat(v0.3): add informational seed directory checks to doctor

Adds two [INFO] lines after the existing pass/fail checks
reporting whether the resolved general and project seed
directories exist. These are read-only and do not contribute to
the pass/fail counters, so users with no seed directories still
see "5 checks passed, 0 failed".

cmd/doctor.go

@@ -178,6 +178,24 @@ func runDoctor(cmd *cobra.Command, args []string) error {
 		failed++
 	}
 
+	// Informational checks (do not affect pass/fail counters).
+	fmt.Println()
+	fmt.Println("Seed directories (informational):")
+
+	seedDir := config.ResolveSeedDir()
+	if info, err := os.Stat(seedDir); err == nil && info.IsDir() {
+		fmt.Printf("  [INFO] General seed directory: %s (present)\n", seedDir)
+	} else {
+		fmt.Printf("  [INFO] General seed directory: %s (not present)\n", seedDir)
+	}
+
+	projectSeedDir := config.ResolveProjectSeedDir()
+	if info, err := os.Stat(projectSeedDir); err == nil && info.IsDir() {
+		fmt.Printf("  [INFO] Project seed directory: %s (present)\n", projectSeedDir)
+	} else {
+		fmt.Printf("  [INFO] Project seed directory: %s (not present)\n", projectSeedDir)
+	}
+
 	// Summary
 	fmt.Println()
 	fmt.Printf("%d checks passed, %d failed\n", passed, failed)