feat: UI optimizations - button feedback, layout fixes, cache clearing, work/exam records

- Add active: state feedback to all buttons across the app
- Fix cache clearing to update Zustand store (not just localStorage)
- Remove checkboxes from settings cache section, compact layout
- Settings page: single outer scroll instead of dual-column scroll
- CourseWorkspace: elastic log panel height, work/exam record counts
- Integrate WorkList/ExamList types and display in UI
- Delete unused CourseList.tsx component
- Fix wk.ts: strict equality, remove unused import

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/store/settings.ts

@@ -1,5 +1,6 @@
 import { createStore } from "zustand/vanilla";
 import { createJSONStorage, persist } from "zustand/middleware";
+import { accountStore } from "~/store/account";
 
 export type HostOption = {
   label: string;
@@ -37,6 +38,7 @@ type SettingsState = {
 };
 
 const accountStorageKey = "account-storage";
+const settingsStorageKey = "settings-storage";
 type PersistedStorage = {
   state?: Record<string, unknown>;
   version?: number;
@@ -115,53 +117,40 @@ export const settingsStore = createStore<SettingsState>()(
         }
       },
       clearPersistedSection: (section) => {
+        const store = accountStore.getState();
+
         if (section === "accounts") {
-          patchAccountStorage((state) => {
-            const {
-              accounts,
-              selectedAccountId,
-              expandedAccountId,
-              selectedCourseId,
-              records,
-              recordCacheMap,
-              studyLogsMap,
-              runningStudyMap,
-              ...rest
-            } = state;
-            void accounts;
-            void selectedAccountId;
-            void expandedAccountId;
-            void selectedCourseId;
-            void records;
-            void recordCacheMap;
-            void studyLogsMap;
-            void runningStudyMap;
-            return rest;
-          });
+          store.clearAccountsData();
+          localStorage.removeItem(accountStorageKey);
         }
 
         if (section === "records") {
+          store.clearRecordsData();
           patchAccountStorage((state) => {
-            const { records, recordCacheMap, selectedCourseId, ...rest } =
-              state;
+            const { records, recordCacheMap, workList, examList, workExamCacheMap, ...rest } = state;
             void records;
             void recordCacheMap;
-            void selectedCourseId;
+            void workList;
+            void examList;
+            void workExamCacheMap;
             return rest;
           });
         }
 
         if (section === "logs") {
+          store.clearAllStudyLogs();
           patchAccountStorage((state) => {
-            const { studyLogsMap, runningStudyMap, ...rest } = state;
+            const { studyLogsMap, ...rest } = state;
             void studyLogsMap;
-            void runningStudyMap;
             return rest;
           });
         }
       },
       clearAllPersistedData: () => {
+        accountStore.getState().clearAllData();
         localStorage.removeItem(accountStorageKey);
+        localStorage.removeItem(settingsStorageKey);
+        window.location.reload();
       },
       setDebugEnabled: (value) => set({ debugEnabled: value }),
       setAutoScrollLogs: (value) => set({ autoScrollLogs: value }),