Sins engagement: coach, choice clarity, last-tramp beats

name: Sins engagement playtest overview: Make captain agency readable by adding a ranked next-act coach, clearer soft-fail/spot tradeoff copy, and last-tramp squeeze storytelling—then verify with existing playtest gates. todos:

• id: coach

content: Add CaptainCoach + CoachLine / enriched SoftFailLine; wire MainWindow + CaptainConsole status: completed

• id: spot-copy

content: Enrich spot Summary/DistanceHint with steam-risk and cash-gate tags status: completed

• id: last-tramp-voice

content: Richer SurvivalLine + VoxBank/LifeMoments for last-tramp* kinds status: completed

• id: docs-playtest

content: Update gameplay.md; build + --playtest / --playtest-last-tramp seed 1001 status: completed isProject: false

Scope (locked)

Implement a compact package of the engagement pillars we discussed: clear feedback + sharper berth tradeoffs + nested last-tramp goals. No UI redesign, no new panels—extend voyage strip, radio, scorecard, and spot summaries. Playtest via existing CLI gates (not a full MCP win run).

Problem

Pause already works (AwaitingDecision), but the bridge’s DecisionLine is raw agent chatter (LastDecision) and soft-fail/survival lines do not answer why it hurt or what to do next. Last-tramp squeezes fire milestones without radio/scorecard voice.

Approach

flowchart LR
  Pause[AwaitingDecision] --> Coach[CaptainCoach.NextAct]
  Registry[Standing cash life berth] --> Coach
  Coach --> Bridge[CoachLine SoftFailLine SurvivalLine]
  Bridge --> UI[MainWindow CaptainConsole]
  Squeeze[last-tramp-squeeze] --> Vox[VoxBank LifeMoments]
  Vox --> Radio[Feed Scorecard]

1. Captain coach (feedback + recovery)

Add `Universe/Player/CaptainCoach.cs` that ranks one next act from live state:

Wire into `CaptainBridgeModel`:

• New CoachLine (agent id calypso.coach) — do not overwrite DecisionLine (keep LastDecision for Spectre/agents).
• Enrich SoftFailLine to include cause + recovery CTA when grounded streak > 0 or soft-fail raised.
• `MainWindow`: show coach under decision; on AwaitingDecision flash coach via existing StudioFeedback (not only soft-fail).
• `CaptainConsole`: print coach on status / pause.

2. Spot / charter choice clarity

In `CaptainJobBoard` spot Summary / DistanceHint:

• Keep AT BERTH vs travel distance.
• Add short risk tags: steam risk when not at origin; cash gate when quoted premium / thin cash makes haul risky (simple cash vs premium heuristic—no new economy math).
• Charter rows already say refuse ≠ premium; ensure coach points at standby when active.

No new accept rules—copy only, so playtests stay deterministic.

3. Last-tramp nested goals + pacing voice

• Extend `TrampSurvival.FormatLine`: in last-tramp mode, append next squeeze ~dN (from `LastTrampPressure.FirstSqueezeDay` / `SqueezeSpacingDays` + first still-operable rival index) and a short grounded-rival count/name when space allows.
• `VoxBank`: handlers for last-tramp, last-tramp-squeeze, last-tramp-lose (James / Meridian voice).
• `LifeMoments`: add those kinds + hooks so scorecard/briefing track the arc.
• Optional one-line overture tweak when --last-tramp is on (pass flag into existing overture path if already available; otherwise keep vox-on-milestone only).

4. Docs (minimal)

One short subsection in `docs/gameplay.md`: voyage strip coach + soft-fail recovery language + last-tramp radio beats. No new markdown files.

Playtesting (acceptance)

Run from novolis-apps with project refs as you usually do for local Sins work:

1. Build Sins debug.
2. `--playtest --seed 1001` — must still pass; coach text must appear in captain status output when paused/awaiting (grep NEXT: or similar prefix).
3. `--playtest-last-tramp --seed 1001` — must still PLAYTEST LAST-TRAMP PASS; expect last-tramp-squeeze / win milestones to speak via VoxBank in feed/report; survival line shows next squeeze day while mid-run.
4. Manual smoke (short): --mode captain --last-tramp --seed 1001 --days 20 (or Avalonia with agent) — pause on grounded/idle, confirm coach points at Pay premium / Travel / Accept; soft-fail line names cause when forced grounded (if easy via save or by watching arrears).

If playtest autopilot never pauses long enough to show coach in logs, assert coach via a tiny unit-style helper test or a headless status dump after forcing NeedsPlayerDecision—prefer grepping captain console banner if autopilot still prints status.

Out of scope

• New economy mechanics, margin formulas, or win-condition changes.
• MCP / Avalonia.Agent protocol changes beyond calypso.coach id.
• Full human MCP play-to-WIN session.
• Commits/PRs unless you ask.