fix: custom conditions apply on add; correct server WS env docs

Custom conditions (per-campaign freeform) previously only persisted to the
campaign palette — Add button did NOT apply them to the targeted participant,
and badges rendered via CONDITIONS (missing custom ids) so applied custom
conditions did not display. Now:

- addCustomCondition(label, participantId) persists to palette AND toggles
  onto the participant in one step. Enter + Add button both pass p.id.
- Admin badge lookup uses allConditions (built-ins + custom), not CONDITIONS.

Shared contract: toggleCondition accepts ANY string. Prove it in tests:
- turn.combat.test.js adds CUSTOM_CONDITIONS ('hexed','rager',
  'marked_for_death','🛡️blessed') to the seeded queue + random pool, asserts
  condition-not-string invariant, and a dedicated add/remove round-trip test.
- replay-combat.js mirrors the same CUSTOM_CONDITIONS through the live backend.

Server-mode docs/env: REACT_APP_BACKEND_WS (stale pre-rename) -> correct
REACT_APP_BACKEND_REALTIME_URL=ws://.../ws in README, env.example,
docker/Dockerfile (STORAGE=ws -> server). DEVELOPMENT.md + scripts/README.md
now point to ./scripts/dev-start.sh as the primary dev entrypoint.

133 shared tests green.

scripts/replay-combat.js

@@ -60,6 +60,9 @@ const CONDITIONS = [
   'invisible', 'paralyzed', 'petrified', 'poisoned', 'prone', 'restrained',
   'sapped', 'shield', 'slowed', 'stunned', 'unconscious', 'vexed',
 ];
+// Custom (freeform) condition ids — DM-added strings. toggleCondition must
+// accept ANY string (UI custom-condition contract). Exercise both paths.
+const CUSTOM_CONDITIONS = ['hexed', 'rager', 'marked_for_death', '🛡️blessed'];
 
 async function patch(encounterPath, enc, result, label) {
   if (!result || !result.patch) { if (label) console.log(`  (${label}: no-op)`); return enc; }
@@ -151,7 +154,7 @@ async function main() {
   await sleep(DELAY);
 
   let totalTurns = 0;
-  const condQueue = [...CONDITIONS].sort(() => Math.random() - 0.5);
+  const condQueue = [...CONDITIONS, ...CUSTOM_CONDITIONS].sort(() => Math.random() - 0.5);
   let reinforcementsAdded = 0;
   let lastPaused = false;
   let lastReorder = 0;
@@ -240,7 +243,7 @@ async function main() {
         const living = enc.participants.filter(p => p.currentHp > 0 && p.isActive !== false);
         if (living.length > 0) {
           const tgt = pick(living);
-          const cond = pick(CONDITIONS);
+          const cond = pick([...CONDITIONS, ...CUSTOM_CONDITIONS]);
           try {
             const c = toggleCondition(enc, tgt.id, cond);
             enc = await patch(encounterPath, enc, c, `condition ${cond} on ${tgt.name}`);