Add feedback categories and roadmap filters

Users want clearer categorization and filtering for feedback and roadmap items so different product areas can be reviewed separately.

Transcript Context

On the May 26, 2026 implementation call, users noted that scheduling-software items and report-writer items were mixed together in the same feedback view. They asked for a way to differentiate or filter by category so teams can focus on the subset that matters to them, especially as report-writer feedback is expected to increase during rollout and testing.