Regenerate CLI from latest OAS

[carlostasada]

Summary

• Sync OpenAPI specs and regenerate CLI clients, commands, and metadata
• Remove market-data commands no longer present upstream (data index, data fixed-income)
• Adapt order submit hook to CreateOrderRequest body rename
• Pick up new flags (--order-id on account activity, --data-quality on corporate-actions)
• Refresh docs, goldens, and integration coverage

Test plan

• make check
• make test-integration — suite passes except TestPositionCloseAll / TestPositionCloseAll_CancelOrders (paper account returns 403 closing leftover equity positions; unrelated to this regenerate)

[greptile-apps]

Greptile Summary

The PR synchronizes the OpenAPI specifications and regenerated CLI artifacts, restructures fixed-income market-data commands, removes index commands, and updates trading request models.

• Adds OAS 3.1 nullable-type handling to the generator.
• Regenerates trading and market-data clients, types, command metadata, and golden files.
• Adds account-activity and corporate-action flags and updates order submission for CreateOrderRequest.
• Removes obsolete index integration coverage and reorganizes fixed-income commands.

Confidence Score: 5/5

The PR appears safe to merge based on the eligible follow-up findings.

No blocking failure remains in the eligible review scope.

Important Files Changed

Filename	Overview
cmd/generate/main.go	Adds OAS 3.1 nullable-type parsing and applies it across generated type and flag resolution.
cmd/generate/commands.go	Reorganizes fixed-income commands, removes index command registrations, and updates generated schema classification.
internal/cmd/order.go	Adapts the order submission hook to the newly named generated request body type.
internal/cmd/commands.gen.go	Refreshes the generated command tree and exposes the newly imported flags and endpoints.
internal/api/trading_types.gen.go	Regenerates trading API models from the updated specification.
internal/api/marketdata_types.gen.go	Regenerates market-data models, including corporate-action data-quality support and removal of index models.
README.md	Refreshes the documented market-data command areas.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart LR
  OAS[Updated OpenAPI specifications] --> Generator[CLI generator]
  Generator --> Clients[Generated API clients and types]
  Generator --> Commands[Generated command metadata]
  Commands --> CLI[Alpaca CLI command tree]
  Clients --> Runtime[API request and response handling]
  CLI --> Runtime

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_{Reviews (2): Last reviewed commit: "Regenerate CLI from latest OAS" | Re-trigger Greptile}