docs: 更新协议文档，删除废弃计划文档

- 更新 http-error-codes, user-points-chat-data-protocol
- 更新 divination-run-protocol, profile-protocol
- 删除废弃的后端和前端设计计划文档

apps/lib/core/network/api_problem_mapper.dart

@@ -15,8 +15,20 @@ String mapApiProblemToMessage(ApiProblem problem, AppLocalizations l10n) {
       return l10n.toastCoinInsufficient;
     case 'AGENT_SESSION_RUN_LIMIT_EXCEEDED':
       return l10n.errorRunLimitExceeded;
+    case 'AGENT_RUNTIME_MODE_INVALID':
+      return l10n.errorRequestGeneric;
     case 'AGENT_DIVINATION_PAYLOAD_REQUIRED':
       return l10n.errorDivinationPayloadRequired;
+    case 'AGENT_SESSION_NOT_FOUND':
+      return l10n.errorRequestGeneric;
+    case 'AGENT_AUDIO_UNSUPPORTED_FORMAT':
+      return l10n.errorAudioUnsupportedFormat;
+    case 'AGENT_AUDIO_TOO_LARGE':
+      return l10n.errorAudioTooLarge;
+    case 'AGENT_AUDIO_EMPTY':
+      return l10n.errorAudioEmpty;
+    case 'AGENT_ASR_UNAVAILABLE':
+      return l10n.errorAsrUnavailable;
     default:
       break;
   }