feat: add mode-aware category reseed and bootstrap registry refactor

[ez-plugins]

Added

• Manual category default reseed command — added /shopadmin reseed [mode] to restore missing bundled category defaults on demand without overwriting existing files. Omitting mode reseeds all bundled modes; providing a mode (e.g. prison, smp) reseeds only that mode.

Changed

• Bootstrap architecture cleanup — startup and shutdown orchestration now lives in the bootstrap package (EzShopsBootstrap), while EzShopsPlugin is reduced to a thin lifecycle entry point (onEnable/onDisable delegation).
• Runtime component access moved to registry — component/debug/reseed accessors are now provided by EzShopsRegistry, removing lifecycle/state getters from EzShopsPlugin.

Fixed

• Default category file persistence across restarts — bundled category defaults are now seeded per mode directory (shop/{mode}/categories/*.yml) and are no longer recreated automatically for existing mode directories when server owners intentionally delete them.
• Mode support for default seeding — bundled shop resource discovery now works across available packaged modes (including future bundled modes), rather than relying on prison-only default category handling.

[codecov-commenter]

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Codecov Report

❌ Patch coverage is 65.47231% with 106 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
...kyblockexp/ezshops/bootstrap/EzShopsBootstrap.java	63.25%	56 Missing and 23 partials ⚠️
...lockexp/ezshops/shop/command/ShopAdminCommand.java	65.38%	2 Missing and 7 partials ⚠️
...yblockexp/ezshops/bootstrap/CoreShopComponent.java	25.00%	0 Missing and 3 partials ⚠️
...lockexp/ezshops/bootstrap/PlayerShopComponent.java	40.00%	3 Missing ⚠️
...ckexp/ezshops/gui/admin/SetupShopsGuiListener.java	25.00%	3 Missing ⚠️
...in/java/com/skyblockexp/ezshops/EzShopsPlugin.java	60.00%	0 Missing and 2 partials ⚠️
...yblockexp/ezshops/bootstrap/TeamShopComponent.java	0.00%	2 Missing ⚠️
...om/skyblockexp/ezshops/gui/stock/AllStocksGui.java	0.00%	1 Missing and 1 partial ⚠️
...kyblockexp/ezshops/gui/stock/StockOverviewGui.java	0.00%	1 Missing and 1 partial ⚠️
...va/com/skyblockexp/ezshops/stock/StockCommand.java	50.00%	0 Missing and 1 partial ⚠️

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