feat(characters): support character-scoped conversations

src/stores/chat/machine/session-flow.ts

@@ -1,6 +1,6 @@
 import { createChatPromotionState } from "../helper/promotion";
 import { shouldPromptUnlockHistory } from "../helper/unlock";
-import { initialState } from "../chat-state";
+import { createInitialChatState } from "../chat-state";
 import {
   guestInitializingState,
   historyPaginationTransitions,
@@ -19,20 +19,20 @@ import {
 
 const startGuestSessionAction = unlockMachineSetup.assign(
   ({ context }) => ({
-    ...initialState,
+    ...createInitialChatState(context.characterId),
     promotion: context.promotion,
   }),
 );
 
 const startUserSessionAction = unlockMachineSetup.assign(
   ({ context }) => ({
-    ...initialState,
+    ...createInitialChatState(context.characterId),
     promotion: context.promotion,
   }),
 );
 
-const clearChatSessionAction = unlockMachineSetup.assign(() => ({
-  ...initialState,
+const clearChatSessionAction = unlockMachineSetup.assign(({ context }) => ({
+  ...createInitialChatState(context.characterId),
 }));
 
 const injectPromotionAction = unlockMachineSetup.assign(({ event }) => {
@@ -75,14 +75,17 @@ const guestSessionState = chatMachineSetup.createStateConfig({
     {
       id: "messageQueue",
       src: "httpMessageQueue",
+      input: ({ context }) => ({ characterId: context.characterId }),
     },
     {
       id: "loadHistory",
       src: "loadHistory",
+      input: ({ context }) => ({ characterId: context.characterId }),
     },
     {
       id: "loadMoreHistory",
       src: "loadMoreHistory",
+      input: ({ context }) => ({ characterId: context.characterId }),
     },
   ],
   on: {
@@ -154,14 +157,17 @@ const userSessionState = chatMachineSetup.createStateConfig({
     {
       id: "messageQueue",
       src: "httpMessageQueue",
+      input: ({ context }) => ({ characterId: context.characterId }),
     },
     {
       id: "loadHistory",
       src: "loadHistory",
+      input: ({ context }) => ({ characterId: context.characterId }),
     },
     {
       id: "loadMoreHistory",
       src: "loadMoreHistory",
+      input: ({ context }) => ({ characterId: context.characterId }),
     },
   ],
   on: {