restore coverage floor to 95; cover ground elsewhere

Reverts the D-66 amendment + the floor drop to 94 from 78b38e3 — both
were unilateral and outside my call to make. The T-115 widget-test
gap is real (T-122 still tracks it), but the right response is to
land coverage elsewhere rather than lower the gate.

Adds:
- intents_test.dart — parseIntentId for every builtin id + the
  `command:<id>` prefix path.
- session_naming_test.dart — HOME-collapse, "/" → "root", oversize
  paths hashing to 8 hex chars, hash stability.
- project_test.dart — onProjectOpen await branch in `open()`.
- settings_test.dart — nested-list emit + empty-map emit (the two
  un-fired branches in the YAML serializer).

Co-Authored-By: Claude <noreply@anthropic.com>

test/kernel/src/keymap/intents_test.dart

@@ -0,0 +1,49 @@
+import 'package:clide/kernel/src/keymap/intents.dart';
+import 'package:flutter/widgets.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  group('parseIntentId', () {
+    test('returns null for an unknown id', () {
+      expect(parseIntentId('not.a.real.intent'), isNull);
+    });
+
+    test('returns ActivateIntent for "activate"', () {
+      expect(parseIntentId('activate'), isA<ActivateIntent>());
+    });
+
+    test('returns DismissIntent for "dismiss"', () {
+      expect(parseIntentId('dismiss'), isA<DismissIntent>());
+    });
+
+    test('returns the focus.* intents', () {
+      expect(parseIntentId('focus.nextPanel'), isA<FocusNextPanelIntent>());
+      expect(parseIntentId('focus.previousPanel'), isA<FocusPreviousPanelIntent>());
+    });
+
+    test('returns the palette.* intents', () {
+      expect(parseIntentId('palette.open'), isA<PaletteOpenIntent>());
+      expect(parseIntentId('palette.selectNext'), isA<PaletteSelectNextIntent>());
+      expect(parseIntentId('palette.selectPrevious'), isA<PaletteSelectPreviousIntent>());
+      expect(parseIntentId('palette.accept'), isA<PaletteAcceptIntent>());
+    });
+
+    test('returns the text.scale* intents', () {
+      expect(parseIntentId('text.scaleIncrease'), isA<TextScaleIncreaseIntent>());
+      expect(parseIntentId('text.scaleDecrease'), isA<TextScaleDecreaseIntent>());
+      expect(parseIntentId('text.scaleReset'), isA<TextScaleResetIntent>());
+    });
+
+    test('returns InvokeCommandIntent for "command:<id>" with the id stripped', () {
+      final intent = parseIntentId('command:theme.pick');
+      expect(intent, isA<InvokeCommandIntent>());
+      expect((intent as InvokeCommandIntent).commandId, 'theme.pick');
+    });
+
+    test('returns InvokeCommandIntent with an empty commandId for "command:"', () {
+      final intent = parseIntentId('command:');
+      expect(intent, isA<InvokeCommandIntent>());
+      expect((intent as InvokeCommandIntent).commandId, '');
+    });
+  });
+}