fix(migration): renumber compression_settings from 022 to 028

Resolve migration version collision: 022 was already used by add_memory_fts5.sql. Renumber to 028 (next available slot after 027_skill_mode_and_metadata).

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

src/lib/db/migrations/028_compression_settings.sql

@@ -1,4 +1,4 @@
--- 022_compression_settings.sql
+-- 028_compression_settings.sql
 -- Insert default compression settings into key_value table (namespace='compression')
 -- Uses INSERT OR REPLACE for idempotency