Fix mobile/UX bug cluster: video minimize, audio interrupt, scroll reset, redundant box

Four fixes in public/index.html, all reported against recaps.cc on mobile:

- Video minimize no longer shows a black frame on expand. toggleVideoMinimize()
  used to call render(), rebuilding the YouTube iframe inside the display:none
  minimized container, which wedged the IFrame API. Minimize now toggles the
  .results-left.minimized class in place; a !videoMinimized guard on render()'s
  needsMount plus a new ensureYtMounted() (called from the expand paths) keep the
  player from ever being created in a hidden container.

- Background processing no longer interrupts podcast audio or resets the
  transcript scroll. The ~60s relay-credit poll calls render(), which rebuilt the
  <audio> element and chunks-scroll. render() now preserves the live <audio> node
  across the innerHTML swap (replaceWith when the src matches) and restores
  chunks-scroll scrollTop; initPodcastPlayer() is idempotent so the preserved node
  doesn't get duplicate listeners.

- Removed the redundant centered "Processing..." box; the staged pizza-tracker
  breadcrumb already covers that window.

- Added -webkit-overflow-scrolling/overscroll-behavior to .chunks-scroll for the
  mobile can't-scroll-to-top report (best-effort, needs on-device verification).

Ships as 0.2.157. Reviewer pass clean; inline JS syntax checked with node --check.

startos/versions/index.ts

@@ -175,8 +175,9 @@ import { v_0_2_153 } from './v0.2.153'
 import { v_0_2_154 } from './v0.2.154'
 import { v_0_2_155 } from './v0.2.155'
 import { v_0_2_156 } from './v0.2.156'
+import { v_0_2_157 } from './v0.2.157'
 
 export const versionGraph = VersionGraph.of({
-  current: v_0_2_156,
-  other: [v_0_2_155, v_0_2_154, v_0_2_153, v_0_2_152, v_0_2_151, v_0_2_150, v_0_2_149, v_0_2_148, v_0_2_147, v_0_2_146, v_0_2_145, v_0_2_144, v_0_2_143, v_0_2_142, v_0_2_141, v_0_2_140, v_0_2_139, v_0_2_138, v_0_2_137, v_0_2_136, v_0_2_135, v_0_2_134, v_0_2_133, v_0_2_132, v_0_2_131, v_0_2_130, v_0_2_129, v_0_2_128, v_0_2_127, v_0_2_126, v_0_2_125, v_0_2_124, v_0_2_123, v_0_2_122, v_0_2_121, v_0_2_120, v_0_2_119, v_0_2_118, v_0_2_117, v_0_2_116, v_0_2_115, v_0_2_114, v_0_2_113, v_0_2_112, v_0_2_111, v_0_2_110, v_0_2_109, v_0_2_108, v_0_2_107, v_0_2_106, v_0_2_105, v_0_2_104, v_0_2_103, v_0_2_102, v_0_2_101, v_0_2_100, v_0_2_99, v_0_2_98, v_0_2_97, v_0_2_96, v_0_2_95, v_0_2_94, v_0_2_93, v_0_2_92, v_0_2_91, v_0_2_90, v_0_2_89, v_0_2_88, v_0_2_87, v_0_2_86, v_0_2_85, v_0_2_84, v_0_2_83, v_0_2_82, v_0_2_81, v_0_2_80, v_0_2_79, v_0_2_78, v_0_2_77, v_0_2_76, v_0_2_75, v_0_2_74, v_0_2_73, v_0_2_72, v_0_2_71, v_0_2_70, v_0_2_69, v_0_2_68, v_0_2_67, v_0_2_66, v_0_2_65, v_0_2_64, v_0_2_63, v_0_2_62, v_0_2_61, v_0_2_60, v_0_2_59, v_0_2_58, v_0_2_57, v_0_2_56, v_0_2_55, v_0_2_54, v_0_2_53, v_0_2_52, v_0_2_51, v_0_2_50, v_0_2_49, v_0_2_48, v_0_2_47, v_0_2_46, v_0_2_45, v_0_2_44, v_0_2_43, v_0_2_42, v_0_2_41, v_0_2_40, v_0_2_39, v_0_2_38, v_0_2_37, v_0_2_36, v_0_2_35, v_0_2_34, v_0_2_33, v_0_2_32, v_0_2_31, v_0_2_30, v_0_2_29, v_0_2_28, v_0_2_27, v_0_2_26, v_0_2_25, v_0_2_24, v_0_2_23, v_0_2_22, v_0_2_21, v_0_2_20, v_0_2_19, v_0_2_18, v_0_2_17, v_0_2_16, v_0_2_15, v_0_2_14, v_0_2_13, v_0_2_12, v_0_2_11, v_0_2_10, v_0_2_9, v_0_2_8, v_0_2_7, v_0_2_6, v_0_2_5, v_0_2_4, v_0_2_3, v_0_2_2, v_0_2_1, v_0_2_0, v_0_1_18, v_0_1_17, v_0_1_16, v_0_1_15, v_0_1_14, v_0_1_13, v_0_1_12, v_0_1_11, v_0_1_10, v_0_1_9, v_0_1_8, v_0_1_7, v_0_1_6, v_0_1_5, v_0_1_4, v_0_1_3, v_0_1_2, v_0_1_1, v_0_1_0],
+  current: v_0_2_157,
+  other: [v_0_2_156, v_0_2_155, v_0_2_154, v_0_2_153, v_0_2_152, v_0_2_151, v_0_2_150, v_0_2_149, v_0_2_148, v_0_2_147, v_0_2_146, v_0_2_145, v_0_2_144, v_0_2_143, v_0_2_142, v_0_2_141, v_0_2_140, v_0_2_139, v_0_2_138, v_0_2_137, v_0_2_136, v_0_2_135, v_0_2_134, v_0_2_133, v_0_2_132, v_0_2_131, v_0_2_130, v_0_2_129, v_0_2_128, v_0_2_127, v_0_2_126, v_0_2_125, v_0_2_124, v_0_2_123, v_0_2_122, v_0_2_121, v_0_2_120, v_0_2_119, v_0_2_118, v_0_2_117, v_0_2_116, v_0_2_115, v_0_2_114, v_0_2_113, v_0_2_112, v_0_2_111, v_0_2_110, v_0_2_109, v_0_2_108, v_0_2_107, v_0_2_106, v_0_2_105, v_0_2_104, v_0_2_103, v_0_2_102, v_0_2_101, v_0_2_100, v_0_2_99, v_0_2_98, v_0_2_97, v_0_2_96, v_0_2_95, v_0_2_94, v_0_2_93, v_0_2_92, v_0_2_91, v_0_2_90, v_0_2_89, v_0_2_88, v_0_2_87, v_0_2_86, v_0_2_85, v_0_2_84, v_0_2_83, v_0_2_82, v_0_2_81, v_0_2_80, v_0_2_79, v_0_2_78, v_0_2_77, v_0_2_76, v_0_2_75, v_0_2_74, v_0_2_73, v_0_2_72, v_0_2_71, v_0_2_70, v_0_2_69, v_0_2_68, v_0_2_67, v_0_2_66, v_0_2_65, v_0_2_64, v_0_2_63, v_0_2_62, v_0_2_61, v_0_2_60, v_0_2_59, v_0_2_58, v_0_2_57, v_0_2_56, v_0_2_55, v_0_2_54, v_0_2_53, v_0_2_52, v_0_2_51, v_0_2_50, v_0_2_49, v_0_2_48, v_0_2_47, v_0_2_46, v_0_2_45, v_0_2_44, v_0_2_43, v_0_2_42, v_0_2_41, v_0_2_40, v_0_2_39, v_0_2_38, v_0_2_37, v_0_2_36, v_0_2_35, v_0_2_34, v_0_2_33, v_0_2_32, v_0_2_31, v_0_2_30, v_0_2_29, v_0_2_28, v_0_2_27, v_0_2_26, v_0_2_25, v_0_2_24, v_0_2_23, v_0_2_22, v_0_2_21, v_0_2_20, v_0_2_19, v_0_2_18, v_0_2_17, v_0_2_16, v_0_2_15, v_0_2_14, v_0_2_13, v_0_2_12, v_0_2_11, v_0_2_10, v_0_2_9, v_0_2_8, v_0_2_7, v_0_2_6, v_0_2_5, v_0_2_4, v_0_2_3, v_0_2_2, v_0_2_1, v_0_2_0, v_0_1_18, v_0_1_17, v_0_1_16, v_0_1_15, v_0_1_14, v_0_1_13, v_0_1_12, v_0_1_11, v_0_1_10, v_0_1_9, v_0_1_8, v_0_1_7, v_0_1_6, v_0_1_5, v_0_1_4, v_0_1_3, v_0_1_2, v_0_1_1, v_0_1_0],
 })

startos/versions/v0.2.157.ts

@@ -0,0 +1,12 @@
+import { VersionInfo } from '@start9labs/start-sdk'
+
+export const v_0_2_157 = VersionInfo.of({
+  version: '0.2.157:0',
+  releaseNotes: {
+    en_US: 'Mobile/UX fixes: minimizing the video player no longer shows a black frame on expand (the iframe stays mounted instead of being rebuilt); background processing no longer interrupts podcast audio playback or jumps the transcript back to the top while a job runs; removed the redundant centered "Processing…" box (the staged progress tracker already covers it); transcript scrolling tuned for iOS.',
+  },
+  migrations: {
+    up: async ({ effects }) => {},
+    down: async ({ effects }) => {},
+  },
+})