Support runtime parameters in TOP and FETCH row-limiting clauses

[Copilot]

This extends the row-limiting parameter support added for LIMIT/OFFSET to also cover TOP and FETCH, so compiled SQL can be reused independent of the requested row count. The change applies to both direct execution and precompiled queries.

• Parser updates

  • Allow ParamValue in TOP ?, TOP ($name), and OFFSET ... FETCH ... forms.
  • Keep existing literal-based syntax unchanged.

• Select compilation/runtime

  • Route TOP through the same deferred limit resolution path already used by parameterized LIMIT.
  • Preserve existing OFFSET handling while enabling parameterized FETCH limits.

• Precompile parity

  • Carry limitParam / offsetParam metadata into precompile/index.js so generated query wrappers resolve row limits at execution time instead of compile time.

• Regression coverage

  • Add a focused issue regression test covering:
    • positional params in TOP and FETCH
    • named params in TOP and FETCH
    • reuse of compiled statements with different parameter values

alasql('SELECT TOP ? a FROM one ORDER BY a ASC', [2]);
alasql('SELECT a FROM one ORDER BY a ASC OFFSET ? ROWS FETCH NEXT ? ROWS ONLY', [1, 2]);

const stmt = alasql.compile('SELECT TOP $lim a FROM one ORDER BY a ASC');
stmt({ lim: 3 });

• Fixes Support parameters in FETCH and and TOP #2529