Port bun-mariadb schema guard, targetId fix, lazy init and tests

- schema: add --dry-run (sync in a rolled-back transaction) and require
  confirmation (or --yes) before dropping tables or columns; unapproved
  destructive changes are refused
- only rebuild tables whose CREATE TABLE statement changed
- always AND targetId with the query, regardless of searchOperator
- empty IN / NOT IN lists become 1 = 0 / 1 = 1
- initialize lazily on first call so importing never throws
- read CLI version from package.json, chmod CLI on compile, pin @types/bun
- add SQL generator, value and schema guard tests

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

src/utils/sql-generator.ts

@@ -18,6 +18,11 @@ type Param<T extends { [key: string]: any } = { [key: string]: any }> = {
     tableName: string;
     dbFullName?: string;
     count?: boolean;
+    /**
+     * Restrict to a single row id. Always combined with AND, regardless of
+     * `searchOperator`.
+     */
+    targetId?: number | string;
 };
 
 type Return = {
@@ -40,7 +45,12 @@ type Return = {
  */
 export default function sqlGenerator<
     T extends { [key: string]: any } = { [key: string]: any },
->({ tableName: passedTableName, genObject, count }: Param<T>): Return {
+>({
+    tableName: passedTableName,
+    genObject,
+    count,
+    targetId,
+}: Param<T>): Return {
     const tableName = sqlIdent(passedTableName, "table name");
     const finalQuery = genObject?.query ? genObject.query : undefined;
 
@@ -115,11 +125,31 @@ export default function sqlGenerator<
         (str) => typeof str == "string",
     );
 
-    let whereString = "";
+    const whereConditions: string[] = [];
 
     if (cleanedUpSearchStr?.[0]) {
         const stringOperator = sqlOperator(genObject?.searchOperator);
-        whereString = `WHERE ${cleanedUpSearchStr.join(` ${stringOperator} `)}`;
+        whereConditions.push(
+            `(${cleanedUpSearchStr.join(` ${stringOperator} `)})`,
+        );
+    }
+
+    if (targetId !== undefined && targetId !== null && targetId !== "") {
+        const id = Number(targetId);
+
+        if (!Number.isSafeInteger(id)) {
+            throw new Error(`Invalid targetId: ${JSON.stringify(targetId)}`);
+        }
+
+        whereConditions.push(`${genObject?.join ? `${tableName}.` : ""}id = ?`);
+        whereValues.push(id);
+    }
+
+    const whereString = whereConditions.length
+        ? `WHERE ${whereConditions.join(" AND ")}`
+        : "";
+
+    if (whereString) {
         queryString += ` ${whereString}`;
         sqlSearhValues.push(...whereValues);
     }