fix(sim): lower transcendence threshold so the mechanic fires in default runs

[csheldrick]

Summary

Transcendence is a named, documented mechanic ("high-tech empires may ascend and leave the galaxy in a blaze of glory") that tallies in the headless report but produced 0 events across the entire default 3000-tick run. The pickMood transcending entry condition required techLevel > 2.2 && wealth > 800. Starting empire techLevel is 0.1–0.5; under the war-heavy conditions of the default run, effective tech growth is ~0.00072/tick, making 2.2 unreachable before most empires collapse.

One-line fix: lower to techLevel > 1.5 && wealth > 600. At the same growth rate, 1.5 is reachable in ~1,400 ticks, allowing longer-lived empires to eventually enter the transcending mood and ascend.

Change

src/sim/Tick.ts — pickMood, line 1641

-["transcending", state.transcendenceEnabled !== false && emp.techLevel > 2.2 && emp.wealth > 800 ? 1.2 : 0],
+["transcending", state.transcendenceEnabled !== false && emp.techLevel > 1.5 && emp.wealth > 600 ? 1.2 : 0],

No state shape changes. No new RNG calls. No new event types. upgradeState and SAVE_VERSION untouched.

Validation (seed 42, 400 stars, milestones 1000/3000)

Metric	Before	After
Transcended	0	1
Wars declared	831	892
Empires collapsed	210	215
Determinism replay	✓ passed	✓ passed
--assert-health gate	✓ passed	✓ passed
tsc -b typecheck	✓	✓
vite build	✓	✓

1 transcendence by tick 3000 is within the healthy 1–3 target range. Wars and collapses shift because one transcendence removes an empire mid-run, altering downstream PRNG consumption — determinism is preserved within the new simulation flow.

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