add STRICT table mode support for SQLite

[elithrar]

Adds .strict() method to sqliteTable() for creating SQLite STRICT tables.

const users = sqliteTable('users', {
  id: int('id').primaryKey(),
  name: text('name'),
}).strict();

Generates: CREATE TABLE users (...) STRICT;

Changes

• .strict() chained method on sqliteTable (like enableRLS() pattern)
• isStrict in schema serialization and DDL generation
• introspection support for existing STRICT tables
• runtime warnings for invalid STRICT column types (valid: INT, INTEGER, REAL, TEXT, BLOB, ANY)

Docs: drizzle-team/drizzle-orm-docs#653

[agustif]

I opened #5907 as the implementation for the current beta branch architecture. It follows the same feature direction, but carries STRICT metadata through the beta DDL model, snapshot v8 upgrade path, strict enable/disable rebuilds, introspection/pull code generation, mixed-version defaults, and unsupported-type validation. Linking the PRs here so maintainers can choose whether #5907 supersedes this older-main implementation or whether any API details should be reconciled.