feat: amber container for filter/idempotent gate state + red pulse on failed badge

When a filter processor rejects a message (filterMatched=false) or an
idempotent consumer detects a duplicate (duplicateMessage=true), the
compound container turns amber (header, border, body tint).

Also adds red pulsing rings on the failed processor badge (same SMIL
pattern as the teal hasTraceData pulse).

Backend: ProcessorNode gains filterMatched/duplicateMessage fields,
threaded from ProcessorExecution JSON path.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

cameleer3-server-core/src/main/java/com/cameleer3/server/core/detail/DetailService.java

@@ -97,6 +97,7 @@ public class DetailService {
                     p.getRootCauseType(), p.getRootCauseMessage(),
                     p.getErrorHandlerType(), p.getCircuitBreakerState(),
                     p.getFallbackTriggered(),
+                    p.getFilterMatched(), p.getDuplicateMessage(),
                     hasTrace
             );
             for (ProcessorNode child : convertProcessors(p.getChildren())) {
@@ -132,6 +133,7 @@ public class DetailService {
                     p.rootCauseType(), p.rootCauseMessage(),
                     p.errorHandlerType(), p.circuitBreakerState(),
                     p.fallbackTriggered(),
+                    null, null, // filterMatched, duplicateMessage (not in flat DB records)
                     hasTrace
             ));
         }

cameleer3-server-core/src/main/java/com/cameleer3/server/core/detail/ProcessorNode.java

@@ -35,6 +35,8 @@ public final class ProcessorNode {
     private final String errorHandlerType;
     private final String circuitBreakerState;
     private final Boolean fallbackTriggered;
+    private final Boolean filterMatched;
+    private final Boolean duplicateMessage;
     private final boolean hasTraceData;
     private final List<ProcessorNode> children;
 
@@ -50,6 +52,7 @@ public final class ProcessorNode {
                          String rootCauseType, String rootCauseMessage,
                          String errorHandlerType, String circuitBreakerState,
                          Boolean fallbackTriggered,
+                         Boolean filterMatched, Boolean duplicateMessage,
                          boolean hasTraceData) {
         this.processorId = processorId;
         this.processorType = processorType;
@@ -73,6 +76,8 @@ public final class ProcessorNode {
         this.errorHandlerType = errorHandlerType;
         this.circuitBreakerState = circuitBreakerState;
         this.fallbackTriggered = fallbackTriggered;
+        this.filterMatched = filterMatched;
+        this.duplicateMessage = duplicateMessage;
         this.hasTraceData = hasTraceData;
         this.children = new ArrayList<>();
     }
@@ -103,6 +108,8 @@ public final class ProcessorNode {
     public String getErrorHandlerType() { return errorHandlerType; }
     public String getCircuitBreakerState() { return circuitBreakerState; }
     public Boolean getFallbackTriggered() { return fallbackTriggered; }
+    public Boolean getFilterMatched() { return filterMatched; }
+    public Boolean getDuplicateMessage() { return duplicateMessage; }
     public boolean isHasTraceData() { return hasTraceData; }
     public List<ProcessorNode> getChildren() { return List.copyOf(children); }
 }