Add customizable plugin display names and weights (#8459)

* feat: add customizable plugin display names and weights

- Add weight field to JobTypeCapability proto message
- Modify ListKnownJobTypes() to return JobTypeInfo with display names and weights
- Modify ListPluginJobTypes() to return JobTypeInfo instead of string
- Sort plugins by weight (descending) then alphabetically
- Update admin API to return enriched job type metadata
- Update plugin UI template to display names instead of IDs
- Consolidate API by reusing existing function names instead of suffixed variants

* perf: optimize plugin job type capability lookup and add null-safe parsing

- Pre-calculate job type capabilities in a map to reduce O(n*m) nested loops
  to O(n+m) lookup time in ListKnownJobTypes()
- Add parseJobTypeItem() helper function for null-safe job type item parsing
- Refactor plugin.templ to use parseJobTypeItem() in all job type access points
  (hasJobType, applyInitialNavigation, ensureActiveNavigation, renderTopTabs)
- Deterministic capability resolution by using first worker's capability

* templ

* refactor: use parseJobTypeItem helper consistently in plugin.templ

Replace duplicated job type extraction logic at line 1296-1298 with
parseJobTypeItem() helper function for consistency and maintainability.

* improve: prefer richer capability metadata and add null-safety checks

- Improve capability selection in ListKnownJobTypes() to prefer capabilities
  with non-empty DisplayName and higher Weight across all workers instead of
  first-wins approach. Handles mixed-version clusters better.
- Add defensive null checks in renderJobTypeSummary() to safely access
  parseJobTypeItem() result before property access
- Ensures malformed or missing entries won't break the rendering pipeline

* fix: preserve existing DisplayName when merging capabilities

Fix capability merge logic to respect existing DisplayName values:
- If existing has DisplayName but candidate doesn't, preserve existing
- If existing doesn't have DisplayName but candidate does, use candidate
- Only use Weight comparison if DisplayName status is equal
- Prevents higher-weight capabilities with empty DisplayName from
  overriding capabilities with non-empty DisplayName

weed/admin/dash/admin_server.go

@@ -3,6 +3,11 @@ package dash
 import (
 	"context"
 	"fmt"
+	"net/http"
+	"sort"
+	"strings"
+	"time"
+
 	"github.com/seaweedfs/seaweedfs/weed/admin/maintenance"
 	adminplugin "github.com/seaweedfs/seaweedfs/weed/admin/plugin"
 	"github.com/seaweedfs/seaweedfs/weed/cluster"
@@ -19,10 +24,6 @@ import (
 	"github.com/seaweedfs/seaweedfs/weed/util"
 	"github.com/seaweedfs/seaweedfs/weed/wdclient"
 	"google.golang.org/grpc"
-	"net/http"
-	"sort"
-	"strings"
-	"time"
 
 	"github.com/seaweedfs/seaweedfs/weed/s3api"
 	"github.com/seaweedfs/seaweedfs/weed/s3api/s3_constants"
@@ -980,7 +981,7 @@ func (s *AdminServer) GetPluginRunHistory(jobType string) (*adminplugin.JobTypeR
 }
 
 // ListPluginJobTypes returns known plugin job types from connected worker registry and persisted data.
-func (s *AdminServer) ListPluginJobTypes() ([]string, error) {
+func (s *AdminServer) ListPluginJobTypes() ([]adminplugin.JobTypeInfo, error) {
 	if s.plugin == nil {
 		return nil, fmt.Errorf("plugin is not enabled")
 	}

weed/admin/plugin/plugin.go

@@ -34,6 +34,13 @@ type Options struct {
 	ClusterContextProvider func(context.Context) (*plugin_pb.ClusterContext, error)
 }
 
+// JobTypeInfo contains metadata about a plugin job type.
+type JobTypeInfo struct {
+	JobType     string `json:"job_type"`
+	DisplayName string `json:"display_name"`
+	Weight      int32  `json:"weight"`
+}
+
 type Plugin struct {
 	plugin_pb.UnimplementedPluginControlServiceServer
 
@@ -623,7 +630,7 @@ func (r *Plugin) ListWorkers() []*WorkerSession {
 	return r.registry.List()
 }
 
-func (r *Plugin) ListKnownJobTypes() ([]string, error) {
+func (r *Plugin) ListKnownJobTypes() ([]JobTypeInfo, error) {
 	registryJobTypes := r.registry.JobTypes()
 	storedJobTypes, err := r.store.ListJobTypes()
 	if err != nil {
@@ -638,12 +645,72 @@ func (r *Plugin) ListKnownJobTypes() ([]string, error) {
 		jobTypeSet[jobType] = struct{}{}
 	}
 
-	out := make([]string, 0, len(jobTypeSet))
+	jobTypeList := make([]string, 0, len(jobTypeSet))
 	for jobType := range jobTypeSet {
-		out = append(out, jobType)
+		jobTypeList = append(jobTypeList, jobType)
+	}
+	sort.Strings(jobTypeList)
+
+	result := make([]JobTypeInfo, 0, len(jobTypeList))
+	workers := r.registry.List()
+
+	// Pre-calculate the best capability for each job type from available workers.
+	// Prefer capabilities with non-empty DisplayName, then higher Weight.
+	jobTypeToCap := make(map[string]*plugin_pb.JobTypeCapability)
+	for _, worker := range workers {
+		for jobType, cap := range worker.Capabilities {
+			if cap == nil {
+				continue
+			}
+			existing, exists := jobTypeToCap[jobType]
+			if !exists || existing == nil {
+				jobTypeToCap[jobType] = cap
+				continue
+			}
+			// Preserve existing if it has DisplayName but cap doesn't.
+			if existing.DisplayName != "" && cap.DisplayName == "" {
+				continue
+			}
+			// Prefer capabilities with a non-empty DisplayName.
+			if existing.DisplayName == "" && cap.DisplayName != "" {
+				jobTypeToCap[jobType] = cap
+				continue
+			}
+			// If DisplayName statuses are equal, prefer higher Weight.
+			if cap.Weight > existing.Weight {
+				jobTypeToCap[jobType] = cap
+			}
+		}
 	}
-	sort.Strings(out)
-	return out, nil
+
+	for _, jobType := range jobTypeList {
+		info := JobTypeInfo{JobType: jobType}
+
+		// Get display name and weight from pre-calculated capabilities
+		if cap, ok := jobTypeToCap[jobType]; ok && cap != nil {
+			if cap.DisplayName != "" {
+				info.DisplayName = cap.DisplayName
+			}
+			info.Weight = cap.Weight
+		}
+
+		// Default display name to job type if not set
+		if info.DisplayName == "" {
+			info.DisplayName = jobType
+		}
+
+		result = append(result, info)
+	}
+
+	// Sort by weight (descending) then by job type (ascending)
+	sort.Slice(result, func(i, j int) bool {
+		if result[i].Weight != result[j].Weight {
+			return result[i].Weight > result[j].Weight // higher weight first
+		}
+		return result[i].JobType < result[j].JobType // alphabetical as tiebreaker
+	})
+
+	return result, nil
 }
 
 // FilterProposalsWithActiveJobs drops proposals that are already assigned/running.

weed/admin/plugin/plugin_scheduler.go

@@ -175,7 +175,8 @@ func (r *Plugin) ListSchedulerStates() ([]SchedulerJobTypeState, error) {
 	r.schedulerMu.Unlock()
 
 	states := make([]SchedulerJobTypeState, 0, len(jobTypes))
-	for _, jobType := range jobTypes {
+	for _, jobTypeInfo := range jobTypes {
+		jobType := jobTypeInfo.JobType
 		state := SchedulerJobTypeState{
 			JobType:           jobType,
 			DetectionInFlight: detectionInFlight[jobType],
@@ -187,6 +188,7 @@ func (r *Plugin) ListSchedulerStates() ([]SchedulerJobTypeState, error) {
 		}
 
 		policy, enabled, loadErr := r.loadSchedulerPolicy(jobType)
+
 		if loadErr != nil {
 			state.PolicyError = loadErr.Error()
 		} else {

weed/admin/view/app/plugin.templ

@@ -683,6 +683,25 @@ templ Plugin(page string) {
                 return 'configuration';
             }
 
+            // Parse a job type item (string or object) into a safe object shape
+            function parseJobTypeItem(item) {
+                var jobType = '';
+                var displayName = '';
+                
+                if (typeof item === 'string') {
+                    jobType = String(item || '').trim();
+                    displayName = jobType;
+                } else if (item && typeof item === 'object') {
+                    jobType = String(item.job_type || item.jobType || '').trim();
+                    displayName = String(item.display_name || item.displayName || jobType || '').trim();
+                    if (!displayName) {
+                        displayName = jobType;
+                    }
+                }
+                
+                return { jobType: jobType, displayName: displayName };
+            }
+
             function topTabKeyForJobType(jobType) {
                 var normalized = String(jobType || '').trim();
                 if (!normalized) {
@@ -706,7 +725,8 @@ templ Plugin(page string) {
                 }
                 var jobTypes = Array.isArray(state.jobTypes) ? state.jobTypes : [];
                 for (var i = 0; i < jobTypes.length; i++) {
-                    if (String(jobTypes[i] || '').trim() === normalized) {
+                    var item = parseJobTypeItem(jobTypes[i]);
+                    if (item.jobType === normalized) {
                         return true;
                     }
                 }
@@ -728,7 +748,8 @@ templ Plugin(page string) {
                     state.activeTopTab = 'overview';
                     return;
                 }
-                state.selectedJobType = String(state.jobTypes[0] || '').trim();
+                var firstItem = parseJobTypeItem(state.jobTypes[0]);
+                state.selectedJobType = firstItem.jobType;
                 state.activeTopTab = topTabKeyForJobType(state.selectedJobType);
             }
 
@@ -749,7 +770,8 @@ templ Plugin(page string) {
 
                 if (state.activeTopTab === 'overview') {
                     if (!state.selectedJobType && Array.isArray(state.jobTypes) && state.jobTypes.length > 0) {
-                        state.selectedJobType = String(state.jobTypes[0] || '').trim();
+                        var item = parseJobTypeItem(state.jobTypes[0]);
+                        state.selectedJobType = item.jobType;
                     }
                     return;
                 }
@@ -758,7 +780,8 @@ templ Plugin(page string) {
                     topTabJobType = state.selectedJobType;
                 }
                 if (!topTabJobType && Array.isArray(state.jobTypes) && state.jobTypes.length > 0) {
-                    topTabJobType = String(state.jobTypes[0] || '').trim();
+                    var item = parseJobTypeItem(state.jobTypes[0]);
+                    topTabJobType = item.jobType;
                 }
                 if (!topTabJobType) {
                     state.activeTopTab = 'overview';
@@ -784,14 +807,17 @@ templ Plugin(page string) {
 
                 var jobTypes = Array.isArray(state.jobTypes) ? state.jobTypes : [];
                 for (var i = 0; i < jobTypes.length; i++) {
-                    var jobType = String(jobTypes[i] || '').trim();
+                    var item = parseJobTypeItem(jobTypes[i]);
+                    var jobType = item.jobType;
+                    var displayName = item.displayName;
+                    
                     if (!jobType) {
                         continue;
                     }
                     html += '' +
                         '<li class="nav-item">' +
                         '<button type="button" class="nav-link" data-plugin-top-tab="' + escapeHtml(topTabKeyForJobType(jobType)) + '">' +
-                        escapeHtml(jobType) +
+                        escapeHtml(displayName) +
                         '</button>' +
                         '</li>';
                 }
@@ -1267,7 +1293,8 @@ templ Plugin(page string) {
                 var jobTypes = [];
 
                 for (var k = 0; k < known.length; k++) {
-                    var knownType = String(known[k] || '').trim();
+                    var item = parseJobTypeItem(known[k]);
+                    var knownType = item && item.jobType ? String(item.jobType).trim() : '';
                     if (!knownType || seen[knownType]) {
                         continue;
                     }

weed/pb/plugin.proto

@@ -96,6 +96,7 @@ message JobTypeCapability {
   int32 max_execution_concurrency = 5;
   string display_name = 6;
   string description = 7;
+  int32 weight = 8;
 }
 
 message RequestConfigSchema {

weed/pb/plugin_pb/plugin.pb.go

@@ -1209,6 +1209,7 @@ type JobTypeCapability struct {
 	MaxExecutionConcurrency int32                  `protobuf:"varint,5,opt,name=max_execution_concurrency,json=maxExecutionConcurrency,proto3" json:"max_execution_concurrency,omitempty"`
 	DisplayName             string                 `protobuf:"bytes,6,opt,name=display_name,json=displayName,proto3" json:"display_name,omitempty"`
 	Description             string                 `protobuf:"bytes,7,opt,name=description,proto3" json:"description,omitempty"`
+	Weight                  int32                  `protobuf:"varint,8,opt,name=weight,proto3" json:"weight,omitempty"`
 	unknownFields           protoimpl.UnknownFields
 	sizeCache               protoimpl.SizeCache
 }
@@ -1292,6 +1293,13 @@ func (x *JobTypeCapability) GetDescription() string {
 	return ""
 }
 
+func (x *JobTypeCapability) GetWeight() int32 {
+	if x != nil {
+		return x.Weight
+	}
+	return 0
+}
+
 type RequestConfigSchema struct {
 	state         protoimpl.MessageState `protogen:"open.v1"`
 	JobType       string                 `protobuf:"bytes,1,opt,name=job_type,json=jobType,proto3" json:"job_type,omitempty"`
@@ -3948,7 +3956,7 @@ const file_plugin_proto_rawDesc = "" +
 	"\bjob_type\x18\x03 \x01(\tR\ajobType\x12&\n" +
 	"\x05state\x18\x04 \x01(\x0e2\x10.plugin.JobStateR\x05state\x12)\n" +
 	"\x10progress_percent\x18\x05 \x01(\x01R\x0fprogressPercent\x12\x14\n" +
-	"\x05stage\x18\x06 \x01(\tR\x05stage\"\xab\x02\n" +
+	"\x05stage\x18\x06 \x01(\tR\x05stage\"\xc3\x02\n" +
 	"\x11JobTypeCapability\x12\x19\n" +
 	"\bjob_type\x18\x01 \x01(\tR\ajobType\x12\x1d\n" +
 	"\n" +
@@ -3958,7 +3966,8 @@ const file_plugin_proto_rawDesc = "" +
 	"\x19max_detection_concurrency\x18\x04 \x01(\x05R\x17maxDetectionConcurrency\x12:\n" +
 	"\x19max_execution_concurrency\x18\x05 \x01(\x05R\x17maxExecutionConcurrency\x12!\n" +
 	"\fdisplay_name\x18\x06 \x01(\tR\vdisplayName\x12 \n" +
-	"\vdescription\x18\a \x01(\tR\vdescription\"U\n" +
+	"\vdescription\x18\a \x01(\tR\vdescription\x12\x16\n" +
+	"\x06weight\x18\b \x01(\x05R\x06weight\"U\n" +
 	"\x13RequestConfigSchema\x12\x19\n" +
 	"\bjob_type\x18\x01 \x01(\tR\ajobType\x12#\n" +
 	"\rforce_refresh\x18\x02 \x01(\bR\fforceRefresh\"\xda\x01\n" +