fix(step-5): migrate Notion MCP to hosted OAuth endpoint

Notion flagged the `@notionhq/notion-mcp-server` npm package for eventual
sunset in its README ("we may sunset this local MCP server repository in
the future — issues and pull requests are not actively monitored"). The
canonical replacement is the hosted endpoint at https://mcp.notion.com/mcp
with OAuth on first use.

Installer UX simplifies:
- No integration-token prompt
- No "share each page with the integration" manual step
- Browser OAuth happens the first time Claude reads/writes Notion;
  user picks page/database scope during that flow

README table row updated to match — still Notion official, just the
hosted path now.

Author: fidgetcoding

README.md

@@ -463,7 +463,7 @@ The script asks which tools you want, then walks you through each one's credenti
 
 | # | Tool | What it does | Needs |
 |---|------|--------------|-------|
-| 1 | **Notion** ([@notionhq](https://github.com/makenotion/notion-mcp-server)) | Search, read, create pages + databases in your Notion workspace. Official, 22 tools. | Integration token from [notion.so/profile/integrations](https://www.notion.so/profile/integrations); share specific pages via page `...` → Connections. |
+| 1 | **Notion** ([@notionhq](https://developers.notion.com/docs/get-started-with-mcp)) | Search, read, create pages + databases in your Notion workspace. Official hosted MCP, 22 tools. | Nothing — browser OAuth on first use. Pick which pages/databases Claude can access during the auth flow. |
 | 2 | **Granola** | Search your Granola meeting transcripts + notes through conversation. | [Granola](https://granola.ai) installed + signed in on Mac. No key. |
 | 3 | **n8n** | HTTP bridge to **your own** n8n instance — trigger and inspect workflows you built. Not a hosted service. | An n8n workflow with an **MCP Server Trigger** node; copy its Production URL. Optional Bearer token. |
 | 4 | **Google Calendar** | Direct Google Calendar access via OAuth. *Secondary — only install if you need a specific Google account bypassing Morgen.* | Google account + ~5min to create OAuth creds (script walks you through). |

step-5/step-5-install.sh

@@ -223,44 +223,24 @@ install_notion() {
     fi
 
     echo ""
-    echo -e "${BLUE}  Notion requires an integration token. Here's how to get one:${NC}"
+    echo -e "${BLUE}  Notion now ships a hosted MCP server — no token needed.${NC}"
+    echo -e "${BLUE}  Auth happens through your browser the first time Claude uses it.${NC}"
     echo ""
-    echo "    1. Go to https://www.notion.so/profile/integrations"
-    echo "    2. Click \"New integration\""
-    echo "    3. Give it a name (e.g. \"Claude Code\")"
-    echo "    4. Select your workspace"
-    echo "    5. Click \"Submit\" and copy the Internal Integration Secret"
-    echo "       (starts with ntn_ or secret_)"
-    echo ""
-    echo -e "${YELLOW}  IMPORTANT: After setup, you also need to share pages with${NC}"
-    echo -e "${YELLOW}  the integration. On any Notion page you want Claude to${NC}"
-    echo -e "${YELLOW}  access, click the ••• menu > Connections > add your${NC}"
-    echo -e "${YELLOW}  integration. Claude can only see pages you explicitly share.${NC}"
+    echo -e "${YELLOW}  When Claude first reads or writes Notion, your browser will${NC}"
+    echo -e "${YELLOW}  open. Sign in and pick which pages/databases Claude can access.${NC}"
     echo ""
 
-    read -rsp "  Notion integration token: " NOTION_TOKEN
-    echo ""
-    echo ""
-
-    if [ -z "$NOTION_TOKEN" ]; then
-        warn "No Notion token provided. You can re-run this step later."
-        return
-    fi
-
-    # Register with the token as an environment variable.
-    claude mcp add --scope user -e NOTION_TOKEN="$NOTION_TOKEN" notion -- npx -y @notionhq/notion-mcp-server 2>/dev/null
+    # Hosted HTTP transport — OAuth handled by Claude Code on first use.
+    # Replaces the legacy @notionhq/notion-mcp-server npm package, which
+    # Notion has flagged for eventual sunset.
+    claude mcp add --scope user --transport http notion https://mcp.notion.com/mcp 2>/dev/null
 
     if claude mcp list 2>/dev/null | grep -qE '^notion:'; then
         success "Notion MCP installed"
         INSTALLED_NOTION=true
-        echo ""
-        echo -e "${GREEN}  Don't forget: share your Notion pages with the integration!${NC}"
-        echo -e "${GREEN}  On each page: ••• menu > Connections > add your integration.${NC}"
-        echo ""
     else
-        soft_fail "Notion MCP installation could not be verified"
+        soft_fail "Notion MCP installation could not be verified — try manually: claude mcp add --scope user --transport http notion https://mcp.notion.com/mcp"
     fi
-    unset NOTION_TOKEN
 }
 
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