chore(helm): document worker job categories and use 'all' as default (#9002)

chore(helm): document worker job categories and use "all" as default

Update the worker jobType comment to document the category system
(all, default, heavy) with all available job types, and change the
default value to "all" to match the CLI default.

k8s/charts/seaweedfs/values.yaml

@@ -1339,9 +1339,14 @@ worker:
   # Admin server to connect to
   adminServer: ""
 
-  # Worker job types - comma-separated list
-  # Available: vacuum, volume_balance, erasure_coding
-  jobType: "vacuum,volume_balance,erasure_coding"
+  # Worker job types - categories or comma-separated list of names/aliases
+  # Categories: all, default, heavy
+  #   default: vacuum, volume_balance, ec_balance, admin_script
+  #   heavy: erasure_coding, iceberg_maintenance
+  #   all: every registered job type
+  # Examples: "all", "default", "heavy", "default,iceberg" (default+iceberg), "vacuum,volume_balance"
+  # Refer: https://github.com/seaweedfs/seaweedfs/wiki/Worker
+  jobType: "all"
 
   # Maximum number of concurrent detection requests
   maxDetect: 1