FIX - harden phone stability and app controls (#28)

frontend/src/views/apps/AppStoreApp.contract.test.ts

@@ -81,6 +81,7 @@ describe('AppStoreApp Sky navigation contract', () => {
     expect(source).toContain('@click="profileOpened = true"')
     expect(source).toContain('const installedApps = computed')
     expect(source).toContain('return !appStore.isInstalled(app.id)')
+    expect(source).toContain('if (!appStore.isAvailable(app.id)) return false')
     expect(source).toContain(
       'class="store-account__apps phone-effect--expensive-shadow"',
     )

frontend/src/views/apps/AppStoreApp.vue

@@ -122,6 +122,7 @@ const catalog = computed(() =>
     if (!isLaunchablePhoneApp(app) || app.id === 'app-store' || app.adminOnly) {
       return false
     }
+    if (!appStore.isAvailable(app.id)) return false
 
     return !appStore.isInstalled(app.id)
   }).sort((a, b) => a.gridOrder - b.gridOrder),
@@ -129,7 +130,9 @@ const catalog = computed(() =>
 const installedApps = computed(() =>
   PHONE_APPS.filter(
     (app): app is LaunchablePhoneAppDefinition =>
-      isLaunchablePhoneApp(app) && appStore.isInstalled(app.id),
+      isLaunchablePhoneApp(app) &&
+      appStore.isAvailable(app.id) &&
+      appStore.isInstalled(app.id),
   ).sort((a, b) => a.gridOrder - b.gridOrder),
 )
 const installedGameCount = computed(
@@ -143,6 +146,7 @@ const dailyCandidates = computed(() =>
         !app.adminOnly &&
         !isExternalPhoneApp(app) &&
         app.id !== 'app-store' &&
+        appStore.isAvailable(app.id) &&
         !DEFAULT_INSTALLED_PHONE_APP_IDS.has(app.id) &&
         !appStore.isInstalled(app.id),
     ),

frontend/src/views/apps/CryptoApp.contract.test.ts

@@ -369,6 +369,22 @@ describe('VaultX crypto app contracts', () => {
     expect(testServer).toContain('function advanceCryptoCycle(')
   })
 
+  it('does not keep market and settlement workers active while disabled', () => {
+    expect(server).toContain('local function start_crypto_schedulers()')
+    expect(server).toMatch(
+      /start_crypto_schedulers\(\)[\s\S]*?if Config\.Crypto\.Enabled ~= true then\s+return/,
+    )
+    expect(server).toContain(
+      'while scheduler_generation == generation and Config.Crypto.Enabled == true do',
+    )
+    expect(server).toContain(
+      'AddEventHandler("sky_phone:configurator:serverUpdated", refresh_crypto_runtime)',
+    )
+    expect(server).not.toMatch(
+      /CreateThread\(function\(\)\s+while true do\s+Wait\(5 \* 60 \* 1000\)/,
+    )
+  })
+
   it('stores cash in price-scale minor units throughout the ledger', () => {
     expect(server).toContain(
       'local ledger_amount = amount * Config.Crypto.PriceScale',

frontend/src/views/apps/DarkChatApp.contract.test.ts

@@ -6,6 +6,14 @@ const source = readFileSync(
   new URL('./DarkChatApp.vue', import.meta.url),
   'utf8',
 )
+const server = readFileSync(
+  new URL('../../../../sky_phone/source/server/darkchat.lua', import.meta.url),
+  'utf8',
+)
+const config = readFileSync(
+  new URL('../../../../sky_phone/config/config.lua', import.meta.url),
+  'utf8',
+)
 
 describe('DarkChatApp Sky UI contract', () => {
   it('uses first-party Sky UI without direct Konsta markup', () => {
@@ -130,4 +138,13 @@ describe('DarkChatApp Sky UI contract', () => {
       /\.dc-inbox-navbar :deep\(\.sky-navbar__title-container > div\)\s*\{[^}]*translateY\(-14px\)/s,
     )
   })
+
+  it('cleans expired messages in bounded indexed batches', () => {
+    expect(config).toContain('CleanupBatchSize = 250')
+    expect(server).toContain('Config.DarkChat.CleanupBatchSize')
+    expect(server).toMatch(
+      /DELETE FROM `sky_phone_darkchat_messages`[\s\S]*?ORDER BY `expires_at`, `id`[\s\S]*?LIMIT \?/,
+    )
+    expect(server).toContain(']], { batch_size })')
+  })
 })

frontend/src/views/apps/PhoneApp.contract.test.ts

@@ -16,6 +16,12 @@ describe('PhoneApp EasyShare contract', () => {
   it('uses the shared full-width Sky tab bar for phone sections', () => {
     expect(source).toContain('<sky-tab-bar')
     expect(source).toContain('<sky-tab-button')
+    expect(source).toContain(
+      'calc(var(--sky-tabbar-height) + var(--sky-safe-area-bottom) + 16px);',
+    )
+    expect(source).not.toMatch(
+      /\.phone-contacts\s*\{[^}]*padding-bottom:\s*20px;/s,
+    )
   })
 
   it('uses shared interactive liquid glass surfaces for phone controls', () => {

frontend/src/views/apps/PhoneApp.vue

@@ -2250,7 +2250,6 @@ onBeforeUnmount(() => {
   position: relative;
   padding-top: 6px;
   padding-right: 24px;
-  padding-bottom: 20px;
 }
 
 .phone-contacts-header {