Description of change

This change fixes SQLite losing column collations during loadTables() by reading COLLATE clauses from the stored table SQL. The query runner now parses column definitions in sqlite_master.sql and assigns the extracted collation to TableColumn.collation, preserving NOCASE (and other collations) across schema syncs. Driver-specific SQL normalization ensures consistent parsing for both sqlite and sqljs.
Why needed:
Without this, a table rebuilt during synchronize() drops collations because they are not captured from the existing table definition.
How verified:
Code inspection of loadTables() and schema sync flow; no automated tests added.
Current behavior:
Collations (e.g. COLLATE NOCASE) are lost after schema changes.
New behavior:
Collations are preserved when loadTables() reads the current schema.
Fixes #11907

Pull-Request Checklist

• Code is up-to-date with the master branch
• This pull request links relevant issues as Fixes #00000
• There are new or updated tests validating the change (tests/**.test.ts)
• Documentation has been updated to reflect this change (docs/docs/**.md)