[teamleaderleo]

Cloud startup now reports repository-copy state and duration on the clone row. The Rust start-chat copy answer emits seed_state, seed_phase, seed_started_at and seed_finished_at on successful, cached and failed copies; Swift forwards them into clone.startedAt/finishedAt before handling a failure. Copying no longer claims to measure machine boot or harness startup.

Follow-up to #30386. Leo asked: “and if i click the < it takes me to environment setup / which is the same as where the cog takes me”. Existing callback behavior stays covered; checklist tests now cover collapsed rendering, elapsed duration, the setup action and the forwarded copy timing shape. Cached copy detail uses the existing localized string.

Validation at 4211953: app compile passed (104 s); targeted Cargo start_chat_cli tests passed 34/34 (run); CloudStartView/cloudStartProgress Bun tests passed 17/17 (run). Both ran remotely through cmux-ci. The base merge preserves the existing resume-and-lease copy operation; timing wraps its result, including early returns. Rust formatting and git diff --check pass. Machine/harness lifecycle timestamp sources and an interaction test for re-expansion are tracked in #30577.

Agent session: agent session

Re-land note: #30792 reverted #30386 while CmuxNextApp grew. This PR keeps only the four emitted seed_* clone fields in CmuxNextApp; environment, copy-progress, and machine/harness timing fields remain in the follow-up producer work.

[blacksmith-sh]

Found 12 test failures on Blacksmith runners:

Failures

Test	View Logs
/tmp/tmpv9xyct4i/summary-fail.json (live):/summary-fail.json (live):	View Logs
/tmp/tmpzwedac2t/summary-missing.json (live):/summary-missing.json (live):	View Logs
[new_workspaces] debug.new_workspace timed 0 of 50 new workspace rows/ [new_workspaces] debug.new_workspace timed 0 of 50 new workspace rows	View Logs
[new_workspaces] the window draws no frames/[new_workspaces] the window draws no frames	View Logs
[tabs] debug.tab_switch timed 0 of 40 switches/ [tabs] debug.tab_switch timed 0 of 40 switches	View Logs
[tabs] the window draws no frames/[tabs] the window draws no frames	View Logs
convention violations found (ERROR lines above)./ convention violations found (ERROR lines above).	View Logs
test_the_repository_highlights_validate (main.DigestTests.test_the_repository_highl ights_validate)/ test_the_repository_highlights_validate (main.DigestTests.test_the_repository_highl ights_validate)	View Logs
test_the_workflow_runs_for_every_included_file_outside_cmux_tui (main.Scope.test_th e_workflow_runs_for_every_included_file_outside_cmux_tui) (event='pull_request', path=' schemas/link-token/native.json')	View Logs
test_the_workflow_runs_for_every_included_file_outside_cmux_tui (main.Scope.test_th e_workflow_runs_for_every_included_file_outside_cmux_tui) (event='pull_request', path=' schemas/link-token/vectors.json')	View Logs

...and 2 more test failures. View all on Blacksmith

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[teamleaderleo]

Review (subagent claude-opus-5-5 medium, carried): SHIP at 8063ab4

Carried from the SHIP at 0bcab80. The PR's changed lines against base differ by one test line, start_chat_cli/tests.rs: the copy.run push closure returns Ok(json!({})) instead of Ok(()), matching base's new push signature that returns serde_json::Value. json! is already imported there.

[teamleaderleo]

Review (subagent claude-opus-5-5 medium, carried): SHIP at 1464bac

Carried from the SHIP at 8063ab4. Against base, the PR's changed lines differ by one added line: #[allow(clippy::arithmetic_side_effects, reason = "epoch milliseconds conversion")] on now_millis() in start_chat_cli.rs. That function's only arithmetic is as_secs_f64() * 1_000.0, an f64 multiply that can't panic or overflow, so a scoped allow with a reason is right.

[teamleaderleo]

Review (subagent claude-opus-5-5 medium, carried): SHIP at 96de160

Carried from the SHIP at 1464bac. The delta replaces the three answer[...] index reads in StartCopy::run's clone progress with get(..).and_then(Value::as_bool|as_str), which clears the PR's own three indexing_slicing hits. The behaviour is unchanged: answer["ok"] == json!(true) holds exactly when get("ok").and_then(Value::as_bool) == Some(true), and the same is true for copied == false and error_code == "ledger_failed". Nothing else changes.