feat(tool-filter): implement runtime tool filtering middleware and associated tests

internal/ai/runtime/internal/impl/callbacks/runlog_callback.go

@@ -100,6 +100,15 @@ func (c *RuntimeTraceCollector) ActivateSkill(skill SkillMetadata, routeReason s
 	c.Data.Skill.RouteTrace = routeTrace
 }
 
+func (c *RuntimeTraceCollector) SetFilteredToolCodes(toolCodes []string) {
+	if c == nil {
+		return
+	}
+	c.mu.Lock()
+	defer c.mu.Unlock()
+	c.Data.Skill.FilteredToolCodes = append([]string(nil), toolCodes...)
+}
+
 func (c *RuntimeTraceCollector) SetRetrieverSummary(summary RetrieverTraceSummary) {
 	if c == nil {
 		return

internal/ai/runtime/internal/impl/callbacks/trace_callback.go

@@ -12,6 +12,8 @@ type ToolTraceItem struct {
 	LatencyMs     int64          `json:"latencyMs,omitempty"`
 	Status        string         `json:"status,omitempty"`
 	ErrorMessage  string         `json:"errorMessage,omitempty"`
+	Blocked       bool           `json:"blocked,omitempty"`
+	BlockedReason string         `json:"blockedReason,omitempty"`
 }
 
 type ToolSearchTraceItem struct {
@@ -146,6 +148,7 @@ type SkillTraceData struct {
 	RouteReason        string   `json:"routeReason,omitempty"`
 	RouteTrace         string   `json:"routeTrace,omitempty"`
 	AllowedToolCodes   []string `json:"allowedToolCodes,omitempty"`
+	FilteredToolCodes  []string `json:"filteredToolCodes,omitempty"`
 	MiddlewareEnabled  bool     `json:"middlewareEnabled,omitempty"`
 	MiddlewareToolName string   `json:"middlewareToolName,omitempty"`
 	VisibleCodes       []string `json:"visibleCodes,omitempty"`