Add tests, schema sync safeguards, and query/handler improvements

- Add bun test suite: SQL generator and value unit tests, plus MariaDB
  integration tests gated on BUN_MARIADB_TEST_DB
- schema: add --dry-run and require confirmation (or --yes) before
  dropping tables/columns; block unapproved destructive statements
- Always AND targetId with the query, regardless of searchOperator
- Initialize lazily on first call; init throws instead of exiting
- Generate IN (?, ?, ...) lists for IN / NOT IN
- Share value binding between insert and update (booleans, embeddings,
  function values, "" -> NULL for non-text columns)
- Keep Buffers and convert BigInt/Date without a JSON round-trip
- DbSQL: report success for empty SELECT results
- Run update() in a transaction with row locking
- Key the client cache on the full connection config
- Consolidate identifier quoting, drop dead code, merge column lookup
- Read CLI version from package.json, pin @types/bun, chmod CLI on compile
- Rebuild dist

Co-Authored-By: Claude Opus 5.5 <[email protected]>

dist/utils/sql-generator-gen-join-str.js

@@ -1,3 +1,4 @@
+import { columnRef, sqlLogicalOperator, sqlRawComparison, } from "./sql-identifier";
 export default function sqlGenGenJoinStr({ join, mtch, table_name }) {
     let values = [];
     if (mtch.__batch) {
@@ -13,7 +14,7 @@ export default function sqlGenGenJoinStr({ join, mtch, table_name }) {
             btch_mtch += str;
             values.push(...batch_values);
             if (i < mtch.__batch.matches.length - 1) {
-                btch_mtch += ` ${mtch.__batch.operator || "OR"} `;
+                btch_mtch += ` ${sqlLogicalOperator(mtch.__batch.operator || "OR")} `;
             }
         }
         btch_mtch += `)`;
@@ -22,28 +23,12 @@ export default function sqlGenGenJoinStr({ join, mtch, table_name }) {
             values,
         };
     }
-    const equality = mtch.raw_equality || "=";
-    const lhs = `${typeof mtch.source == "object" ? mtch.source.tableName : table_name}.${typeof mtch.source == "object" ? mtch.source.fieldName : mtch.source}`;
-    const rhs = `${(() => {
-        if (mtch.targetLiteral) {
-            values.push(mtch.targetLiteral);
-            // if (typeof mtch.targetLiteral == "number") {
-            //     return `${mtch.targetLiteral}`;
-            // }
-            // return `'${mtch.targetLiteral}'`;
-            return `?`;
-        }
-        if (join.alias) {
-            return `${typeof mtch.target == "object"
-                ? mtch.target.tableName
-                : join.alias}.${typeof mtch.target == "object"
-                ? mtch.target.fieldName
-                : mtch.target}`;
-        }
-        return `${typeof mtch.target == "object"
-            ? mtch.target.tableName
-            : join.tableName}.${typeof mtch.target == "object" ? mtch.target.fieldName : mtch.target}`;
-    })()}`;
+    const equality = mtch.raw_equality
+        ? sqlRawComparison(mtch.raw_equality)
+        : "=";
+    const lhs = typeof mtch.source == "object"
+        ? columnRef(mtch.source.fieldName, mtch.source.tableName)
+        : columnRef(String(mtch.source), table_name);
     if (mtch.between) {
         values.push(mtch.between.min, mtch.between.max);
         return {
@@ -58,6 +43,16 @@ export default function sqlGenGenJoinStr({ join, mtch, table_name }) {
             values,
         };
     }
+    const rhs = (() => {
+        if (mtch.targetLiteral !== undefined && mtch.targetLiteral !== null) {
+            values.push(mtch.targetLiteral);
+            return `?`;
+        }
+        if (typeof mtch.target == "object") {
+            return columnRef(mtch.target.fieldName, mtch.target.tableName);
+        }
+        return columnRef(String(mtch.target), join.alias || join.tableName);
+    })();
     return {
         str: `${lhs} ${equality} ${rhs}`,
         values,