Hook HandleCharacterSelection to set up log paths before world loading

Read character name from select screen data and realm from CVar when
the player clicks Enter World, before InitializeLogBuffer fires.
Removes GUID/name-cache fallback — no more early passthrough to wrong paths.

src/combatlog/offsets.zig

@@ -43,16 +43,27 @@ pub const FN_INIT_LOG_BUFFER: usize = 0x0065a0c0;
 pub const FN_WRITE_FMT_LOG_MSG: usize = 0x0065ac20;
 
 // =============================================================================
-// Player identity
+// Character select / enter world
 // =============================================================================
 
-/// GetPlayerGUID — __fastcall(), no params, returns EAX(low):EDX(high).
-pub const FN_GET_PLAYER_GUID: usize = 0x00468550;
+/// HandleCharacterSelection — void(void), called by Lua EnterWorld().
+/// Fires when the player clicks "Enter World" on the character select screen,
+/// before world loading and log buffer initialization.
+pub const FN_HANDLE_CHAR_SELECT: usize = 0x0046b500;
 
-/// RetrieveNPCDataFromCache — __thiscall(ECX=cache_obj), 6 stack params, RET 0x18.
-/// (guid_low, guid_high, name_buf_ptr, 0, 0, 0) → char* name or NULL in EAX.
-/// Resolves player/NPC names from the name cache — available before the object manager.
-pub const FN_NAME_CACHE_LOOKUP: usize = 0x0055f080;
+/// Selected character index (int) on the character select screen.
+pub const CHAR_SELECT_INDEX: usize = 0x0083856c;
+
+/// Character list base pointer. Each entry is 0x120 bytes.
+/// Character name (C string) is at entry + 0x08.
+pub const CHAR_LIST_BASE: usize = 0x00b42144;
+
+/// Number of characters in the character list.
+pub const CHAR_LIST_COUNT: usize = 0x00b42140;
+
+/// Size of each character entry in the character list.
+pub const CHAR_ENTRY_SIZE: usize = 0x120;
+
+/// Offset of character name within a character entry.
+pub const CHAR_NAME_OFFSET: usize = 0x08;
 
-/// Name cache object — static instance passed as ECX (this) to RetrieveNPCDataFromCache.
-pub const NAME_CACHE_OBJ: usize = 0x00c0e228;