feat: store raw processor tree JSON and add error categorization fields

Fixes iteration overlay corruption caused by flat storage collapsing
duplicate processorIds across loop iterations.

Server:
- Store raw processor tree as processors_json JSONB on executions table
- Detail endpoint serves from processors_json (faithful tree), falls back
  to flat record reconstruction for older executions
- V10 migration: processors_json, error categorization (errorType,
  errorCategory, rootCauseType, rootCauseMessage), OTel (traceId, spanId),
  circuit breaker (circuitBreakerState, fallbackTriggered), drops
  erroneous splitDepth/loopDepth columns
- Add all new fields through full ingestion/storage/API chain

UI:
- Fix overlay wrapper filtering: check wrapper type before status filter
- Add new fields to schema.d.ts

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

cameleer3-server-app/src/main/resources/db/migration/V10__error_categorization_and_tracing.sql

@@ -0,0 +1,23 @@
+-- executions: store raw processor tree for faithful detail response
+ALTER TABLE executions ADD COLUMN processors_json JSONB;
+
+-- executions: error categorization + OTel tracing
+ALTER TABLE executions ADD COLUMN error_type TEXT;
+ALTER TABLE executions ADD COLUMN error_category TEXT;
+ALTER TABLE executions ADD COLUMN root_cause_type TEXT;
+ALTER TABLE executions ADD COLUMN root_cause_message TEXT;
+ALTER TABLE executions ADD COLUMN trace_id TEXT;
+ALTER TABLE executions ADD COLUMN span_id TEXT;
+
+-- processor_executions: error categorization + circuit breaker
+ALTER TABLE processor_executions ADD COLUMN error_type TEXT;
+ALTER TABLE processor_executions ADD COLUMN error_category TEXT;
+ALTER TABLE processor_executions ADD COLUMN root_cause_type TEXT;
+ALTER TABLE processor_executions ADD COLUMN root_cause_message TEXT;
+ALTER TABLE processor_executions ADD COLUMN error_handler_type TEXT;
+ALTER TABLE processor_executions ADD COLUMN circuit_breaker_state TEXT;
+ALTER TABLE processor_executions ADD COLUMN fallback_triggered BOOLEAN;
+
+-- Remove erroneous depth columns from V9
+ALTER TABLE processor_executions DROP COLUMN IF EXISTS split_depth;
+ALTER TABLE processor_executions DROP COLUMN IF EXISTS loop_depth;