fix(pinot): support tesseract select template

[seanm-stripe]

Check List

• Tests have been run in packages where changes have been made if available
• Linter has been run for changed code
• Tests for the changes have been added if not covered yet
• Docs have been added / updated if required

Issue Reference this PR resolves

Fixes #10988

Description of Changes Made (if issue reference is not provided)

This updates the Pinot statements.select SQL template to support Tesseract planner inputs such as from_prepared.

Previously, Pinot overrode the base select template with an older template that only rendered {{ from }} and {{ from_alias }}. When CUBEJS_TESSERACT_SQL_PLANNER=true, Tesseract can pass the source table through from_prepared, which caused Pinot SQL for sql_table cubes to render an empty subquery:

FROM (

) AS

The Pinot template now preserves the base select template behavior for Tesseract-facing variables, including from_prepared, while keeping Pinot’s dialect-specific OFFSET before LIMIT ordering (which is why we can't just use BaseQuery)

This also adds regression coverage for a Pinot sql_table cube using the native SQL planner to verify that generated SQL renders the table source and does not emit an empty FROM () AS clause.