feat(hint): H2 Phase C batch 4 — advanced-mode SQL tier-3 hints (ADR-0053)

Distinct SQL-syntax hints for the 11 advanced-mode forms: sql create
table / alter table / create index / drop index / drop table / insert /
update / delete, select, with, explain. hint_ids wired on all 11 nodes.

Hardened hint_key_for_input_in_mode for shared entry words: a bare
multi-form entry word defers to tier-2; when the second token isn't a
form word (insert into / update … set), it falls back to the
mode-primary key — so advanced mode resolves to the SQL form and simple
mode to the DSL form. catalogue + keys.rs registered. +2 spot tests +
grammar mode-disambiguation asserts; 2495 pass / 1 ignored, clippy clean.

src/dsl/grammar/data.rs

@@ -1874,7 +1874,7 @@ pub static EXPLAIN_SQL: CommandNode = CommandNode {
     // too). Mirrors the `SQL_INSERT`/`SQL_UPDATE`/`SQL_DELETE`
     // precedent; otherwise `note_help` would print `explain` twice.
     help_id: None,
-    hint_ids: &[],
+    hint_ids: &["explain_sql"],
     usage_ids: &[],};
 
 /// SQL `SELECT` (ADR-0030 §6, ADR-0031, ADR-0032).
@@ -1890,7 +1890,7 @@ pub static SELECT: CommandNode = CommandNode {
     shape: Node::Subgrammar(&sql_select::SQL_SELECT_TAIL),
     ast_builder: build_select,
     help_id: None,
-    hint_ids: &[],
+    hint_ids: &["select"],
     usage_ids: &["parse.usage.select"],};
 
 /// `WITH …` top-level statement (ADR-0032 §4 / sub-phase 2c).
@@ -1905,7 +1905,7 @@ pub static WITH: CommandNode = CommandNode {
     shape: Node::Subgrammar(&sql_select::SQL_WITH_TAIL),
     ast_builder: build_select,
     help_id: None,
-    hint_ids: &[],
+    hint_ids: &["with"],
     usage_ids: &["parse.usage.with"],};
 
 /// SQL `INSERT` — the `Advanced`-category node of the shared
@@ -1923,7 +1923,7 @@ pub static SQL_INSERT: CommandNode = CommandNode {
     shape: Node::Subgrammar(&sql_insert::SQL_INSERT_SHAPE),
     ast_builder: build_sql_insert,
     help_id: None,
-    hint_ids: &[],
+    hint_ids: &["sql_insert"],
     usage_ids: &[],
 };
 
@@ -1937,7 +1937,7 @@ pub static SQL_UPDATE: CommandNode = CommandNode {
     shape: Node::Subgrammar(&sql_update::SQL_UPDATE_SHAPE),
     ast_builder: build_sql_update,
     help_id: None,
-    hint_ids: &[],
+    hint_ids: &["sql_update"],
     usage_ids: &[],
 };
 
@@ -1953,7 +1953,7 @@ pub static SQL_DELETE: CommandNode = CommandNode {
     shape: Node::Subgrammar(&sql_delete::SQL_DELETE_SHAPE),
     ast_builder: build_sql_delete,
     help_id: None,
-    hint_ids: &[],
+    hint_ids: &["sql_delete"],
     usage_ids: &[],
 };