Organize assets into Fonts and Models folders

Move font (arialroundedmtprocyr_bold) into Assets/Fonts and the Paintman
model, animations, and animator controller into Assets/Models. Pure file
relocation; .meta files moved alongside their assets so GUIDs are preserved.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Assets/Fonts/arialroundedmtprocyr_bold SDF.asset.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 964ae5cd392ba08499b88de012ff8213
+NativeFormatImporter:
+  externalObjects: {}
+  mainObjectFileID: 11400000
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Fonts/arialroundedmtprocyr_bold.otf.meta

@@ -0,0 +1,21 @@
+fileFormatVersion: 2
+guid: 353bd1e8150b74846ab1679a4a808645
+TrueTypeFontImporter:
+  externalObjects: {}
+  serializedVersion: 4
+  fontSize: 16
+  forceTextureCase: -2
+  characterSpacing: 0
+  characterPadding: 1
+  includeFontData: 1
+  fontNames:
+  - Arial Rounded MT Pro Cyr
+  fallbackFontReferences: []
+  customCharacters: 
+  fontRenderingMode: 0
+  ascentCalculationMode: 1
+  useLegacyBoundsCalculation: 0
+  shouldRoundAdvanceValue: 1
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: