[AZ-900] Remove local .cursor/ copy — skills now live at ~/.cline/

.cursor/rules/sql.mdc

@@ -1,15 +0,0 @@
----
-description: "SQL and database migration conventions: naming, safety, parameterized queries, indexing, Postgres"
-globs: ["**/*.sql", "**/migrations/**", "**/Migrations/**"]
----
-# SQL / Migrations
-
-- Use lowercase for SQL keywords (or match project convention); snake_case for table/column names
-- Every migration must be reversible (include DOWN/rollback)
-- Never rename tables or columns without explicit confirmation — prefer additive changes
-- Use parameterized queries; never concatenate user input into SQL
-- Add indexes for columns used in WHERE, JOIN, ORDER BY
-- Use transactions for multi-step data changes
-- Include `NOT NULL` constraints by default; explicitly allow `NULL` only when needed
-- Name constraints explicitly: `pk_table`, `fk_table_column`, `idx_table_column`
-- Test migrations against a copy of production schema before applying