feat(custom-rulesets): support custom rulesets (#23)

* feat(custom_ruleset): add custom rulesets support

* feat(custom-ruleset): add version check

* feat(custom-ruleset): add LegacyIO API to get ruleset hashes

* feat(pp): add check for rulesets whose pp cannot be calculated

* docs(readme): update README to include support for custom rulesets

* fix(custom-ruleset): make `rulesets` empty instead of throw a error when version check is disabled

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* chore(custom-ruleset): apply the latest changes of generator

c891bcd159

and

e25041ad3b

* feat(calculator): add fallback performance calculation for unsupported modes

* fix(calculator): remove debug print

* fix: resolve reviews

* feat(calculator): add difficulty calculation checks

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

app/models/performance.py

@@ -1,4 +1,4 @@
-# Version: 2025.10.19
+# Version: 2025.1012.1
 # Auto-generated by scripts/generate_ruleset_attributes.py.
 # Schema generated by https://github.com/GooGuTeam/custom-rulesets
 # Do not edit this file directly.
@@ -91,30 +91,12 @@ class ManiaPerformanceAttributes(PerformanceAttributes):
 ManiaDifficultyAttributes = DifficultyAttributes
 
 
-HishigataPerformanceAttributes = PerformanceAttributes
-
-
-HishigataDifficultyAttributes = DifficultyAttributes
-
-
-RushPerformanceAttributes = PerformanceAttributes
-
-
-RushDifficultyAttributes = DifficultyAttributes
-
-
 SentakkiPerformanceAttributes = PerformanceAttributes
 
 
 SentakkiDifficultyAttributes = DifficultyAttributes
 
 
-SoyokazePerformanceAttributes = PerformanceAttributes
-
-
-SoyokazeDifficultyAttributes = DifficultyAttributes
-
-
 class TauPerformanceAttribute(PerformanceAttributes):
     aim: float
     speed: float
@@ -132,6 +114,22 @@ class TauDifficultyAttributes(DifficultyAttributes):
     overall_difficulty: float
 
 
+RushPerformanceAttributes = PerformanceAttributes
+
+
+RushDifficultyAttributes = DifficultyAttributes
+
+
+HishigataPerformanceAttributes = PerformanceAttributes
+
+
+HishigataDifficultyAttributes = DifficultyAttributes
+
+
+SoyokazePerformanceAttributes = PerformanceAttributes
+
+
+SoyokazeDifficultyAttributes = DifficultyAttributes
 PerformanceAttributesUnion = (
     OsuPerformanceAttributes | TaikoPerformanceAttributes | ManiaPerformanceAttributes | PerformanceAttributes
 )