Hexclave rename PR5: rename skills/ dir and stack-companion (Step 11/A)

skills/stack-auth -> skills/hexclave (+ docs URL), and
dashboard components/stack-companion.{tsx,/} -> hexclave-companion.
typecheck + lint green.

apps/dashboard/src/app/(main)/(protected)/projects/[projectId]/sidebar-layout.tsx

@@ -4,7 +4,7 @@ import { CmdKSearch, CmdKTrigger } from "@/components/cmdk-search";
 import { Link } from "@/components/link";
 import { Logo } from "@/components/logo";
 import { ProjectSwitcher } from "@/components/project-switcher";
-import { HexclaveCompanion } from "@/components/stack-companion";
+import { HexclaveCompanion } from "@/components/hexclave-companion";
 import ThemeToggle from "@/components/theme-toggle";
 import {
   Button,

apps/dashboard/src/components/hexclave-companion.tsx

@@ -10,10 +10,10 @@ import { runAsynchronously } from '@hexclave/shared/dist/utils/promises';
 import React, { createContext, useCallback, useContext, useEffect, useRef, useState } from 'react';
 import packageJson from '../../package.json';
 import { FeedbackForm } from './feedback-form';
-import { AIChatWidget } from './stack-companion/ai-chat-widget';
-import { ChangelogWidget } from './stack-companion/changelog-widget';
-import { FeatureRequestBoard } from './stack-companion/feature-request-board';
-import { UnifiedDocsWidget } from './stack-companion/unified-docs-widget';
+import { AIChatWidget } from './hexclave-companion/ai-chat-widget';
+import { ChangelogWidget } from './hexclave-companion/changelog-widget';
+import { FeatureRequestBoard } from './hexclave-companion/feature-request-board';
+import { UnifiedDocsWidget } from './hexclave-companion/unified-docs-widget';
 
 /**
  * Compare two US date versions in M/D/YY format

docs-mintlify/guides/getting-started/ai-integration.mdx

@@ -63,7 +63,7 @@ Install the skill once so your agent loads it automatically every time Hexclave
     ````markdown title="Skill install prompt"
     Install the Hexclave skill (`SKILL.md`) for me so you load it automatically on future Hexclave tasks. The canonical file lives at:
 
-    https://raw.githubusercontent.com/hexclave/hexclave/dev/skills/stack-auth/SKILL.md
+    https://raw.githubusercontent.com/hexclave/hexclave/dev/skills/hexclave/SKILL.md
 
     These are the same install locations the `skills` CLI (https://github.com/vercel-labs/skills) uses — match them exactly so the file is picked up the same way.