feat: enhance filament management and UI improvements

- Update SpoolPresetRepository to include user_id in the update query.
- Expand .gitignore to include various environment and temporary files.
- Revise agent documentation for better clarity and formatting.
- Implement pull-to-refresh functionality in the inventory list.
- Integrate API calls for deleting and updating filaments, ensuring state synchronization.
- Add custom color picker for filament color selection with hex validation.
- Update AndroidManifest and Gradle files for improved configuration and permissions.
- Refactor MainActivity and MainApplication for better splash screen handling.
- Update styles and colors for a cohesive UI experience.
- Replace splash screen logos and icons with new assets.

backend/src/adapters/outbound/postgres_spool_preset_repo.rs

@@ -69,12 +69,13 @@ impl SpoolPresetRepository for PostgresSpoolPresetRepository {
         let row = sqlx::query_as::<_, SpoolPresetRow>(
             r#"UPDATE spool_presets
                SET name = $2, spool_weight_g = $3
-               WHERE id = $1 AND is_system = false
+               WHERE id = $1 AND is_system = false AND user_id = $4
                RETURNING id, name, spool_weight_g, is_system, user_id, created_at"#,
         )
         .bind(preset.id)
         .bind(&preset.name)
         .bind(preset.spool_weight_g)
+        .bind(preset.user_id)
         .fetch_one(self.db.as_ref())
         .await?;