Finish the mobile performance pass

- Cache the model catalog once per user and each conversation's setting
  separately; clear both on logout and after model saves
- Compress hashed assets asynchronously with a byte budget and set Vary
- Memoize message parsing and throttle selection reads
- Debounce draft writes to localStorage
- Keep the composer editor on the page and focused, as before
- Add a bundle budget check and run it in CI
- Show a loading block while sessions load and a workspace avatar in the
  mobile conversation header

src/functions/frontend/save-bot-harness-settings.ts

@@ -2,6 +2,7 @@ import fetchApi from "@moduletrace/twui/utils/fetch/fetchApi";
 import type { APIResponseObject } from "@moduletrace/bunext/types";
 import type { SaveBotHarnessSettingsRequest } from "@/src/schemas/harness-schema";
 import type { BotHarnessOverviewPayload } from "@/src/types";
+import { clearHarnessCache } from "@/src/utils/harness-cache";
 
 /**
  * Saves a worker bot's own model settings and returns the fresh page data.
@@ -9,11 +10,15 @@ import type { BotHarnessOverviewPayload } from "@/src/types";
 export default async function saveBotHarnessSettings(
     body: SaveBotHarnessSettingsRequest,
 ) {
-    return await fetchApi<
+    const res = await fetchApi<
         SaveBotHarnessSettingsRequest,
         APIResponseObject<BotHarnessOverviewPayload>
     >(`/api/admin/bots/save-harness-settings`, {
         method: "POST",
         body,
     });
+
+    if (res.success) clearHarnessCache();
+
+    return res;
 }

src/functions/frontend/save-workspace-harness-settings.ts

@@ -2,16 +2,21 @@ import fetchApi from "@moduletrace/twui/utils/fetch/fetchApi";
 import type { APIResponseObject } from "@moduletrace/bunext/types";
 import type { SaveWorkspaceHarnessSettingsRequest } from "@/src/schemas/harness-schema";
 import type { BotHarnessOverviewPayload } from "@/src/types";
+import { clearHarnessCache } from "@/src/utils/harness-cache";
 
 /**
  * Saves a workspace's model settings and returns the fresh page data.
  */
 export default async function saveWorkspaceHarnessSettings(body: SaveWorkspaceHarnessSettingsRequest) {
-    return await fetchApi<
+    const res = await fetchApi<
         SaveWorkspaceHarnessSettingsRequest,
         APIResponseObject<BotHarnessOverviewPayload>
     >(`/api/admin/workspaces/save-harness-settings`, {
         method: "POST",
         body,
     });
+
+    if (res.success) clearHarnessCache();
+
+    return res;
 }