fix(ddl): initialize idle_session_timeout_secs in CREATE and CLONE DATABASE handlers

DatabaseDescriptor gained idle_session_timeout_secs in the preceding
commit; the CREATE DATABASE, CLONE DATABASE, and MIRROR DATABASE create
handlers need to set the field to 0 (disabled) when constructing the
initial descriptor so the struct literal compiles without missing fields.

Author: farhan-syah

nodedb/src/control/server/pgwire/ddl/database/clone.rs

@@ -170,6 +170,7 @@ pub fn handle_clone_database(
         }),
         mirror_origin: None,
         audit_dml: nodedb_types::AuditDmlMode::None,
+        idle_session_timeout_secs: 0,
     };
 
     // ── Propose via Raft ──────────────────────────────────────────────────────

nodedb/src/control/server/pgwire/ddl/database/create.rs

@@ -108,6 +108,7 @@ pub fn handle_create_database(
         parent_clone: None,
         mirror_origin: None,
         audit_dml: nodedb_types::AuditDmlMode::None,
+        idle_session_timeout_secs: 0,
     };
 
     // Propose through metadata Raft group 0 so all replicas apply the

nodedb/src/control/server/pgwire/ddl/database/mirror/create.rs

@@ -113,6 +113,7 @@ pub fn handle_mirror_database(
         parent_clone: None,
         mirror_origin: Some(mirror_origin),
         audit_dml: nodedb_types::AuditDmlMode::None,
+        idle_session_timeout_secs: 0,
     };
 
     // Propose through Raft; fall back to direct write in single-node mode.