Phase 1: player character depth

- Inventory + currency + encumbrance vs carrying capacity
- Class resources with correct short/long/daily rest recovery (applyRest)
- Spellcasting: slots (+pact), known/prepared spells, derived DC + attack
- Defenses: 5e death saves/inspiration/exhaustion, pf2e dying/wounded/hero points
- Derived weapon attacks + passive perception via extended RulesSystem
- Dexie v2 migration backfills new fields; debounced save flushes on pagehide
- 9 new unit tests, new character-depth e2e; all green

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

e2e/character-depth.spec.ts

@@ -0,0 +1,53 @@
+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('character depth: inventory, spellcasting, attacks, resources + rest', async ({ page }) => {
+  // Campaign + character
+  await page.getByRole('button', { name: '+ New campaign' }).first().click();
+  await page.locator('input[data-autofocus]').fill('Phandelver');
+  await page.getByRole('button', { name: 'Create' }).click();
+  await page.getByRole('link', { name: 'Characters' }).click();
+  await page.getByRole('button', { name: '+ New character' }).first().click();
+  await page.locator('input[data-autofocus]').fill('Gandalf');
+  await page.getByRole('button', { name: 'Create' }).click();
+  await page.getByRole('link', { name: /Gandalf/ }).click();
+
+  // Set INT high so spell DC is computable
+  await page.getByLabel('INT score').fill('18');
+
+  // Inventory — add an item via Enter
+  await page.getByPlaceholder('Longsword', { exact: true }).fill('Staff of Power');
+  await page.getByPlaceholder('Longsword', { exact: true }).press('Enter');
+  await expect(page.locator('input[aria-label="Item name"]')).toHaveValue('Staff of Power');
+
+  // Spellcasting — choose ability, expect a derived DC to appear
+  await page.getByLabel('Casting ability').selectOption('int');
+  await expect(page.getByText('Spell DC')).toBeVisible();
+
+  // Attacks — add one, expect a computed to-hit
+  await page.getByPlaceholder('Longsword, Shortbow…').fill('Quarterstaff');
+  await page.getByPlaceholder('Longsword, Shortbow…').press('Enter');
+  await expect(page.getByText('to hit')).toBeVisible();
+
+  // Resources — add one, spend it, long rest restores it
+  await page.getByPlaceholder('Ki Points, Rage, Focus…').fill('Sorcery Points');
+  await page.getByPlaceholder('Ki Points, Rage, Focus…').press('Enter');
+  // Only one resource exists, so the controls are unambiguous.
+  await page.getByRole('button', { name: 'Spend' }).click();
+  await expect(page.getByText('0/1')).toBeVisible();
+  await page.getByRole('button', { name: 'Long Rest' }).click();
+  await expect(page.getByText('1/1')).toBeVisible();
+
+  // Reload — persistence survived (autosave). Wait for the debounce + beforeunload flush.
+  await page.waitForTimeout(500);
+  await page.reload();
+  await expect(page.locator('input[aria-label="Item name"]')).toHaveValue('Staff of Power');
+});