EzSkills 2.0.0

Acrobatics skill — tracks XP earned from jumping, falling, and sprinting (ACROBATICS enum constant, Feather GUI icon, xp-base: 80.0, xp-multiplier: 1.4, max-level: 100)
Custom skills API — third-party plugins can now register their own skills at runtime via SkillDefinition and EzSkillsAPI.registerSkill(); progress is persisted in the same storage backend as built-in skills
SkillDefinitionRegistry — thread-safe in-memory registry for custom SkillDefinition instances; rejects names that clash with built-in SkillType values
EzSkillsAPI.getRegisteredSkills() — returns the list of all currently registered custom skill definitions
Custom skill XP / level methods on EzSkillsAPI: addExperience, getSkillLevel, getSkillExperience, setSkillLevel now accept any registered custom skill name in addition to built-in SkillType names

Skill GUI (/skills) updated to a 36-slot (4-row) layout to accommodate five built-in skills; close button moved to slot 31
SkillProfile stores custom skill progress in a separate HashMap alongside the built-in EnumMap; getAllCustom() exposes the full map for serialisation
SkillProfileModel persists and loads custom skill columns (<name>_level / <name>_experience) automatically

Skill	Enum	XP base	XP multiplier	Max level
Woodcutting	`WOODCUTTING`	100.0	1.5	100
Mining	`MINING`	100.0	1.5	100
Fishing	`FISHING`	100.0	1.5	100
Fighting	`FIGHTING`	120.0	1.6	100
Acrobatics	`ACROBATICS`	80.0	1.4	100

Ability	Skill	Trigger
Lumberjack	Woodcutting	Auto-smelt logs on break
Spelunker	Mining	Night-vision while underground
Angler	Fishing	Reduced fishing wait time
Warrior	Fighting	Temporary strength boost on kill streak

EzSkills