chore(graceful-handoff): 2.0.0 — bump version, remove auto_discover, update CHANGELOG [skip-docs]

Step 8 of v2.0 plan.

plugins/graceful-handoff/tests/plugin-manifest.test.mjs

@@ -0,0 +1,46 @@
+// plugin-manifest.test.mjs — verify plugin.json schema for v2.0
+
+import { test } from 'node:test';
+import { strict as assert } from 'node:assert';
+import { readFileSync } from 'node:fs';
+import { dirname, join } from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+const __dirname = dirname(fileURLToPath(import.meta.url));
+const MANIFEST = join(__dirname, '..', '.claude-plugin', 'plugin.json');
+const CHANGELOG = join(__dirname, '..', 'CHANGELOG.md');
+
+test('plugin.json version is 2.0.0', () => {
+  const m = JSON.parse(readFileSync(MANIFEST, 'utf-8'));
+  assert.equal(m.version, '2.0.0');
+});
+
+test('plugin.json does NOT include auto_discover (not in documented schema)', () => {
+  const m = JSON.parse(readFileSync(MANIFEST, 'utf-8'));
+  assert.ok(!('auto_discover' in m), 'auto_discover field should be removed');
+});
+
+test('plugin.json description mentions auto-trigger or context-threshold', () => {
+  const m = JSON.parse(readFileSync(MANIFEST, 'utf-8'));
+  assert.match(m.description, /auto-trigger|context-threshold/i);
+});
+
+test('CHANGELOG has [2.0.0] entry', () => {
+  const c = readFileSync(CHANGELOG, 'utf-8');
+  assert.match(c, /## \[2\.0\.0\]/);
+});
+
+test('CHANGELOG [2.0.0] entry has BREAKING section', () => {
+  const c = readFileSync(CHANGELOG, 'utf-8');
+  // Get content from [2.0.0] until next ## or end
+  const match = c.match(/## \[2\.0\.0\][\s\S]*?(?=## \[1\.0\.0\]|$)/);
+  assert.ok(match, '[2.0.0] section missing');
+  assert.match(match[0], /### BREAKING/);
+});
+
+test('No source files reference version 1.0.0', () => {
+  const m = JSON.parse(readFileSync(MANIFEST, 'utf-8'));
+  // Manifest is the canonical source — check it doesn't accidentally still say 1.0.0
+  const raw = readFileSync(MANIFEST, 'utf-8');
+  assert.doesNotMatch(raw, /"version":\s*"1\.0\.0"/);
+});