Phase 11: data-driven Assistant

- Deterministic advisors (src/lib/assistant): party resources (downed/bloodied/
  spent slots/rest nudges), session prep (dangling [[wiki links]], active quests,
  empty journal), live combat hints (turn, downed combatants) — pure + tested
- Data-driven encounter builder: greedily assembles level/CR-appropriate monsters
  to a target difficulty via the Phase-3 budget; one click builds + opens combat
- Assistant page: suggestion cards with one-click actions (goto, long rest,
  create note); wired into routes, dashboard, command palette
- 8 advisor/builder unit tests + assistant e2e

Conversational LLM layer intentionally deferred (no provider/key in this env);
the deterministic advisor is the offline default per the plan.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

e2e/assistant.spec.ts

@@ -0,0 +1,33 @@
+import { test, expect } from '@playwright/test';
+
+test.beforeEach(async ({ page }) => {
+  await page.goto('/');
+  await page.evaluate(async () => {
+    indexedDB.deleteDatabase('ttrpg-manager');
+    localStorage.clear();
+  });
+  await page.reload();
+});
+
+test('assistant flags a bloodied PC and builds an encounter', async ({ page }) => {
+  // Sample campaign gives us PCs + monsters
+  await page.getByLabel('Settings').click();
+  await page.getByRole('button', { name: 'Load sample campaign' }).click();
+  await expect(page.getByRole('heading', { name: 'Sample: Lost Mine' })).toBeVisible();
+
+  // Wound a PC so the assistant has something to flag
+  await page.getByLabel('Primary').getByRole('link', { name: 'Characters' }).click();
+  await page.getByRole('link', { name: /Lia the Brave/ }).click();
+  await page.getByLabel('Current HP').fill('3');
+  await page.waitForTimeout(450); // let autosave flush
+
+  // Assistant shows a resource suggestion
+  await page.getByLabel('Primary').getByRole('link', { name: 'Dashboard' }).click();
+  await page.getByRole('link', { name: 'Assistant' }).click();
+  await expect(page.getByRole('heading', { name: 'Assistant' })).toBeVisible();
+  await expect(page.getByText(/Lia the Brave is bloodied/)).toBeVisible();
+
+  // Build a Medium encounter → lands in combat with monsters
+  await page.getByRole('button', { name: 'Medium' }).click();
+  await expect(page.getByRole('button', { name: 'Start combat' })).toBeVisible();
+});