refactor: move event-related files to web/events/

Move Event*, MessagePort*, BroadcastChannel*, AbortSignal,
EventTarget, EventEmitter, JS* event files from bindings/
and webcore/ to web/events/.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

cmake/Sources.json

@@ -83,6 +83,7 @@
       "src/buntime/web/blob/*.cpp",
       "src/buntime/web/encoding/*.cpp",
       "src/buntime/web/compression/*.cpp",
+      "src/buntime/web/events/*.cpp",
       "src/bake/*.cpp",
       "src/deps/*.cpp",
       "src/vm/*.cpp",

cmake/targets/BuildBun.cmake

@@ -894,6 +894,7 @@ target_include_directories(${bun} PRIVATE
   ${CWD}/src/buntime/web/blob
   ${CWD}/src/buntime/web/encoding
   ${CWD}/src/buntime/web/compression
+  ${CWD}/src/buntime/web/events
   ${CWD}/src/buntime/modules
   ${CWD}/src/js/builtins
   ${CWD}/src/napi

src/buntime/jsc.zig

@@ -46,7 +46,7 @@ pub const MarkedArrayBuffer = array_buffer.MarkedArrayBuffer;
 pub const JSCArrayBuffer = array_buffer.JSCArrayBuffer;
 pub const CachedBytecode = @import("./bindings/CachedBytecode.zig").CachedBytecode;
 pub const CallFrame = @import("./bindings/CallFrame.zig").CallFrame;
-pub const CommonAbortReason = @import("./bindings/CommonAbortReason.zig").CommonAbortReason;
+pub const CommonAbortReason = @import("./web/events/CommonAbortReason.zig").CommonAbortReason;
 pub const CommonStrings = @import("./bindings/CommonStrings.zig").CommonStrings;
 pub const CustomGetterSetter = @import("./bindings/CustomGetterSetter.zig").CustomGetterSetter;
 pub const DOMFormData = @import("./web/blob/DOMFormData.zig").DOMFormData;
@@ -97,7 +97,7 @@ pub const SavedSourceMap = @import("./SavedSourceMap.zig");
 pub const VirtualMachine = @import("./VirtualMachine.zig");
 pub const ModuleLoader = @import("./ModuleLoader.zig");
 pub const RareData = @import("./rare_data.zig");
-pub const EventType = @import("./bindings/EventType.zig").EventType;
+pub const EventType = @import("./web/events/EventType.zig").EventType;
 pub const JSRuntimeType = @import("./bindings/JSRuntimeType.zig").JSRuntimeType;
 pub const ZigStackFrameCode = @import("./bindings/ZigStackFrameCode.zig").ZigStackFrameCode;