feat(eba): consolidate event bindings, fix command.tsx pointer-events

- Replace legacy pipeline binding card + RoutingRulesEditor with unified
  EventBindingsEditor; remove use_pipeline_uuid/pipeline_routing_rules
  from bot form schema and API update handler
- Add _augment_event_data() to botmgr for filter virtual fields
  (message_text, message_element_types, chat_type)
- Add alembic migration 0009: migrate use_pipeline_uuid and
  pipeline_routing_rules into event_bindings on first run
- Fix command.tsx: data-[disabled] -> data-[disabled=true] so cmdk 1.x
  items (data-disabled=false) are not pointer-events:none
- EventBindingsEditor: onSelect on CommandItems, filter conditions panel,
  disabled bindings section, dnd reorder
- i18n: add filter/condition keys for zh-Hans and en-US
- Update tests to match new bot service behavior

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

web/src/i18n/locales/en-US.ts

@@ -372,14 +372,34 @@ const enUS = {
     targetPipeline: 'Pipeline',
     targetDiscard: 'Discard',
     selectTarget: 'Select handling logic',
+    searchTarget: 'Search…',
+    noTargetFound: 'No results found',
     priority: 'Priority',
     enabled: 'Enabled',
     eventBindingDescriptionPlaceholder: 'Rule description',
     noEventBindings: 'No event bindings',
     unsupportedPipelineEvent: 'Pipelines can only be used for message.* events',
+    disable: 'Disable',
+    enable: 'Enable',
+    disabledBindings: 'Disabled',
     eventCustom: 'Custom event',
     eventWildcard: 'All events',
     eventNamespaceWildcard: '{{namespace}}.*',
+    conditions: 'Conditions',
+    conditionsDescription:
+      'All conditions must match to trigger this binding. Leave empty to always trigger.',
+    conditionsEmpty: 'No conditions — always triggers.',
+    addFilter: 'Add condition',
+    filterChatType: 'Session type',
+    filterChatId: 'Session ID',
+    filterMessageText: 'Message text',
+    filterMessageElement: 'Message element',
+    operator_eq: 'equals',
+    operator_neq: 'not equals',
+    operator_contains: 'contains',
+    operator_not_contains: 'not contains',
+    operator_starts_with: 'starts with',
+    operator_regex: 'regex',
     routingRules: 'Conditional Routing Rules',
     routingRulesDescription:
       'Rules are evaluated in order; first match routes to its pipeline. Fallback to the default pipeline above if none match.',