Add ruleset-aware Rolemaster editors

README.md

@@ -64,6 +64,7 @@ Gameplay capabilities now include:
 - Admin user management is integrated into workspace screen toggles (`Play`, `Campaign Management`, `Admin`)
 - Rolemaster expression validation currently recognizes `2d10+48`, `d100+4`, and `d100!+85`, including Rolemaster-only negative modifiers such as `d100-15`
 - Rolemaster open-ended percentile skills and skill-group defaults now persist a nullable `FumbleRange` field, while D6 and D&D rows migrate forward unchanged
+- Rolemaster create/edit forms now expose a ruleset-aware roll-type selector with synchronized canonical expressions and conditional `FumbleRange` inputs for open-ended percentile skills and skill groups
 - Rolemaster roll execution now supports initiative (`2d10+x`), standard percentile (`d100+x`), and open-ended percentile (`d100!+x`) with recursive high-end chaining and low-end subtraction based on `FumbleRange`; low-end trigger rolls are shown for auditability but do not count toward the total
 - Compact campaign-log summaries stay dense for Rolemaster rolls, while lazy-loaded roll detail includes ordered die metadata for each open-ended follow-up step
 - Startup migration coverage is validated against a copied temp-file instance of `RpgRoller/App_Data/rpgroller.development.db` before feature work is considered complete