feat: add benchmark-programs — 58 telecom COBOL test programs

作为子目录纳入系统，与核心测试管道协同

Co-Authored-By: Claude <noreply@anthropic.com>

benchmark-programs/23-select-condition/select-report.txt

@@ -0,0 +1,20 @@
+KEY       NAME                   BALANCE
+  RANGE START FAILED
+
+=== BATCH CONTROL TOTALS ===
+Total search requests : 04==
+Total records found   : 00==
+Total records not found: 01=
+
+=== OPERATION TYPE STATISTICS ===
+By-key searches  : 01ATISTICS ===
+Range searches   : 01ATISTICS ===
+Greater searches : 01ATISTICS ===
+
+=== DATA INTEGRITY HASH TOTALS ===
+Hash total (CUST-BALANCE sum): 000000000000
+
+=== SEARCH PERFORMANCE METRICS ===
+Total READs (by-key)     : 02S ===
+Total READs (range)      : 00S ===
+Total READs (greater-than): 00 ===