refactor: rename ws adapter to server across codebase

'ws' conflated storage mode with transport protocol (WebSocket). Renamed for
clarity: the adapter talks the self-hosted server (src/storage/server.js), which
happens to use WebSocket for realtime — but the name should describe what it
connects to, not how.

Renames:
- src/storage/ws.js -> server.js
- createWsStorage() -> createServerStorage()
- storage mode 'ws' -> 'server'
- REACT_APP_BACKEND_WS -> REACT_APP_BACKEND_REALTIME_URL
- factory param wsUrl -> realtimeUrl
- server/tests/ws-*.test.js -> server-*.test.js

Kept literal: 'ws' npm package, ws:// protocol URLs, /ws WebSocket endpoint.
Transport is accurate there; only storage-naming changed.

Updated all docs (DEVELOPMENT, TESTING, REWORK_PLAN, GLOSSARY, TODO), scripts
(dev-start.sh, replay-combat.js), factory + ESM tests. 204 tests green.

server/tests/server-reconnect.test.js

@@ -0,0 +1,56 @@
+// BUG-8: ws adapter has NO reconnect. WS dies (idle/error/close) → wsReady=null,
+// subscribers dead forever, no re-subscribe. Display frozen until full reload.
+// Test: subscribe, write (cb fires), force-drop WS, write again (must still fire).
+// RED on current.
+
+'use strict';
+
+const path = require('path');
+const os = require('os');
+const { createServer } = require('../index');
+const { createServerStorage } = require('../../src/storage/server');
+
+const flush = (ms = 150) => new Promise(r => setTimeout(r, ms));
+
+async function makeStorage() {
+  const dbPath = path.join(os.tmpdir(), `ws-recon-${Date.now()}-${Math.random().toString(36).slice(2)}.sqlite`);
+  const handle = createServer({ dbPath, port: 0 });
+  await new Promise((resolve, reject) => {
+    handle.server.on('error', reject);
+    handle.server.listen(0, resolve);
+  });
+  const port = handle.server.address().port;
+  const baseUrl = `http://127.0.0.1:${port}`;
+  const wsUrl = `ws://127.0.0.1:${port}/ws`;
+  const storage = createServerStorage({ baseUrl, realtimeUrl: wsUrl });
+  storage.dispose = (done) => handle.close(done);
+  return storage;
+}
+
+describe('BUG-8: ws adapter reconnect after drop', () => {
+  test('subscribe fires cb after WS dropped + restored', async () => {
+    const storage = await makeStorage();
+    try {
+      await storage.setDoc('campaigns/a', { name: 'V1' });
+      const calls = [];
+      storage.subscribeDoc('campaigns/a', (doc) => calls.push(doc));
+      await flush();
+      expect(calls.length).toBeGreaterThanOrEqual(1);
+
+      // force-drop WS (simulates idle timeout / network blip)
+      storage._test.forceDrop();
+      await flush(300);
+      // wsReady should be null now
+      expect(storage._test.getReady()).toBeNull();
+
+      // write again — subscriber must re-fire after reconnect
+      await storage.setDoc('campaigns/a', { name: 'V2' });
+      await flush(1000);
+
+      const last = calls[calls.length - 1];
+      expect(last).toEqual({ id: 'a', name: 'V2' });
+    } finally {
+      await new Promise(r => storage.dispose(r));
+    }
+  }, 15000);
+});