andrussal d4958b5b1a workflows: split capture task setup
Refactors long expectation capture functions into phase helpers.

- DaWorkloadExpectation::start_capture
  - Before: planned channel math + shared state init + 2 spawned tasks + state install in one method.
  - After: planned_channel_ids/build_capture_state/spawn_run_block_counter/spawn_da_capture.

- TxInclusionExpectation::start_capture
  - Before: wallet/plan validation + tracked set build + capture loop in one method.
  - After: build_capture_plan/spawn_tx_inclusion_capture/capture_tx_outputs.
2025-12-19 01:55:17 +01:00
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2025-12-19 01:55:17 +01:00