v0.8.5 — housekeeping from the audit, and the playtest line retired

The third release from the audit; nothing a player sees changes. CHANGELOG has the detail.

The 0.4.9 playtest line is no longer maintained (Jesse, 2026-09-29): the deploy rule that
existed for it is gone and #85 is moot. The table test (#39 #35 #42a #40) is closed — every
line of the checklist was met at a table. #46 is done and cannot regrow: the 36 unused
declarations are removed and `noUnusedLocals`/`noUnusedParameters` are on; two of them were
dead bot functions from rejected candidates the round said it had deleted. The documents no
longer teach `trainCapSlack` (a knob that throws), point at `as-built.md` (deleted in 0.8.2),
model `officeType` (the engine says `tier`) or describe `collisionOccurred` (never emitted);
the README's account of bot flags now matches the bot's. Five playtest saves committed in
`docs/` against the repository's own rule are in the ignored `playtests/`.

What the audit found and did not fix is written down as TODO #112-#117, each with its reason.
#112 is `docs/plans/structure.md`, the proposal for `http.ts`, `main.ts` and `check`. #117 —
`/api/save` hands a seat the seed mid-game — waits on a conversation.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FrCWubm9GAftYCm2hWdKwK

test/advance.test.ts

@@ -12,7 +12,6 @@ import { applyIntent, areaOf, check, isBeingMadeUp } from '../src/engine/apply.t
 import { EXPEDITE_FAULT_PENALTY, HAND_LIMIT, MAX_CONSIST, STAGES_PER_DAY, TOTAL_ROLLING_STOCK } from '../src/engine/content.ts';
 import { legalActions } from '../src/engine/legal.ts';
 import { createGame } from '../src/engine/setup.ts';
-import { developerBot } from '../src/sim/bot.ts';
 import type { CrewTray, DivisionNode, GameConfig, GameState } from '../src/engine/state.ts';
 import { coordKey, railFacingOf } from '../src/engine/state.ts';
 

test/apply.test.ts

@@ -14,7 +14,7 @@ import { legalActions } from '../src/engine/legal.ts';
 import { createGame } from '../src/engine/setup.ts';
 import type { CrewTray, GameConfig, GameState, GridCoord, TrackCard } from '../src/engine/state.ts';
 import { carsOn, coordKey, railFacingOf, spaceOn, turnOf } from '../src/engine/state.ts';
-import { cardDescription, snapshot } from '../src/sim/view.ts';
+import { snapshot } from '../src/sim/view.ts';
 
 const config: GameConfig = {
   mode: 'solitaire',
@@ -1243,7 +1243,6 @@ describe('a Modifier only goes beside a host that can use it (regression)', () =
     // REPORTED from playtesting: two Ice Houses in one district. Industries have been barred from
     // doubling up since Q4, but a Modifier is a different card kind and had no such check at all.
     const s = game();
-    const area = areaOf(s, 0);
     applyIntent(s, 0, { type: 'localOps.choose', option: 'draw' });
 
     const copies = [...s.cards.entries()]

test/harness.test.ts

@@ -231,7 +231,7 @@ describe('the game conserves Rolling Stock', () => {
 
       for (let t = 0; t < 50_000; t++) {
         const before = census(s);
-        const pumped = pump(s);
+        pump(s);
         /**
          * A COLLISION DESTROYS NO CAR, and this used to assume it destroyed all of them.
          *

test/server/lobby.test.ts

@@ -242,7 +242,7 @@ describe('playerCountAllowed', () => {
 describe('game codes', () => {
   it('skips codes the caller marks taken', () => {
     let calls = 0;
-    const code = freshGameCode((c) => {
+    const code = freshGameCode(() => {
       calls++;
       return calls < 3; // taken twice, free on the third
     });

test/sim.test.ts

@@ -9,7 +9,6 @@ import assert from 'node:assert/strict';
 import { pump } from '../src/engine/advance.ts';
 import { createGame } from '../src/engine/setup.ts';
 import { applyIntent, check, refillDivisionYardIfEmpty } from '../src/engine/apply.ts';
-import { TOTAL_ROLLING_STOCK } from '../src/engine/content.ts';
 import type { GameConfig, GameState, OfficeArea } from '../src/engine/state.ts';
 import type { Intent } from '../src/engine/intents.ts';
 import { connectionsFor, exitsFrom, hasPort, joins, neighbour, opposite, variantsFor } from '../src/engine/track.ts';

test/train-rules.test.ts

@@ -31,7 +31,6 @@ const config: GameConfig = {
   optionalRules: { reducedVisibility: false, employeeRotation: false, emergencyToolbox: false },
 };
 const game = (seed = 5): GameState => createGame({ id: 'g', seed, config, playerNames: ['p'] });
-const at = (row: number, col: number): GridCoord => ({ row, col });
 
 const straight = (standing: RollingStock[] = []): TrackCard => ({
   geometry: { kind: 'track', geometry: 'straight' },

test/web.test.ts

@@ -1794,17 +1794,6 @@ describe('the static build', () => {
     };
 
     assert.ok(clickFirst(actions, 'button.act'), 'no action button rendered');
-    // Specifically the PLAY verb: a hand usually holds cards that can only be discarded, and
-    // discarding highlights the Department piles rather than the board.
-    const clickVerb = (el: Record<string, unknown>, verb: string): boolean => {
-      const fn = el['querySelectorAll'] as (s: string) => Record<string, unknown>[];
-      const target = fn
-        .call(el, 'button.cardact')
-        .find((n) => (n['dataset'] as Record<string, string>)['verb'] === verb);
-      if (!target) return false;
-      (target['onclick'] as (() => void) | null)?.();
-      return true;
-    };
     /**
      * TRY EVERY PLAY BUTTON, NOT JUST THE FIRST — a card offering "play" does not necessarily play
      * ONTO THE BOARD.