fix: include execution/correlation/exchange IDs in full-text search

The _search_text materialized column only contained error messages,
bodies, and headers — not execution_id, correlation_id, exchange_id,
or route_id. Searching by ID via cmd-k returned no results.

- Add ID fields to _search_text in ClickHouse DDL (covered by ngram
  bloom filter index)
- Add direct LIKE matches on execution_id, correlation_id, exchange_id
  in the text search WHERE clause for faster exact ID lookups

Requires ClickHouse table recreation (fresh install).

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

cameleer3-server-app/src/main/resources/clickhouse/V2__executions.sql

@@ -30,7 +30,8 @@ CREATE TABLE IF NOT EXISTS executions (
     is_replay            Bool DEFAULT false,
 
     _search_text         String MATERIALIZED
-        concat(error_message, ' ', error_stacktrace, ' ', attributes,
+        concat(execution_id, ' ', correlation_id, ' ', exchange_id, ' ', route_id,
+               ' ', error_message, ' ', error_stacktrace, ' ', attributes,
                ' ', input_body, ' ', output_body, ' ', input_headers,
                ' ', output_headers, ' ', root_cause_message),