Add max buffs and max debuffs settings

- /tfb buffs 0-32 and /tfb debuffs 0-16, plus two options-panel sliders.
- Saved settings are validated and reset when out of range.
- A lowered debuff limit hides extra debuffs instead of spilling them into the
  buff row; the buff limit applies to spilled debuffs too.
- Works on the native and ClassicAPI paths and with test mode.
- Bump to 0.9.6; tests now 23 scenarios.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019W3rwutyoLNHxXPycYWSMc

README.md

@@ -24,7 +24,7 @@ tooltips. Without ClassicAPI it behaves like the original: more icons, no timers
 | 1.17.10+ | Event-driven updates (`UNIT_AURA_DELTA`), no polling |
 | 1.17.11+ | **Recommended.** Fixes the reverse sweep briefly showing a bright icon just before an aura ends |
 
-Harmful auras beyond the first 16 use free buff-row slots. ClassicAPI decides
+Harmful auras beyond the first 16 use free buff-row slots (only while the debuff limit is 16; the buff limit still applies). ClassicAPI decides
 aura order and lists your own auras first.
 
 ## Settings
@@ -38,6 +38,8 @@ aura order and lists your own auras first.
 | `/tfb sweeps [on\|off]` | Reverse cooldown sweeps | off |
 | `/tfb size 6-20` | Countdown font size | 9 |
 | `/tfb warning 0-30` | Seconds left at which text turns red | 5 |
+| `/tfb buffs 0-32` | Most buffs shown | 32 |
+| `/tfb debuffs 0-16` | Most debuffs shown. Below 16, extra debuffs are hidden rather than moved into the buff row. | 16 |
 | `/tfb test [buffs debuffs]` | Fake auras on your target for checking layout (default 32 and 16; 0-32 each). Run again or `/tfb test off` to stop. | off |
 | `/tfb reset` | Restore defaults | |