chore(plugin-catalog): sigrex optional-mcps removal at merge

optional-mcps/sigrex/manifest.yaml

@@ -1,39 +0,0 @@
-# Nous-approved MCP catalog entry.
-# Presence in this directory = approval. Merged via PR review.
-manifest_version: 1
-
-name: sigrex
-description: 'Trading automation infrastructure for AI agents. Build, run and manage strategies, AI trading agents and bots in plain language.'
-source: https://docs.sigrex.io/more/mcp-server
-
-# Sigrex ships a remote MCP server over Streamable HTTP with OAuth 2.1
-# (PKCE, Client ID Metadata Document). Nothing to install locally.
-transport:
-  type: http
-  url: https://mcp.sigrex.io
-
-auth:
-  type: oauth
-
-suggest:
-  keywords:
-    keywords:
-      - trading bot
-      - trading automation
-      - trading strategy
-      - algo trading
-      - trading signals
-  hosts:
-    - sigrex.io
-  examples:
-    - Show my active strategies and when each last triggered
-    - Create a code strategy and keep it inactive for review
-    - Pause all bots in a folder
-
-post_install: |
-  On first connection Hermes opens a browser to sign in to Sigrex
-  (or run `hermes mcp login sigrex`). Approve access, then restart the
-  session so tools load.
-  The connection has full access to your Sigrex account, including
-  actions that can place live trades. The companion `sigrex` plugin adds
-  a workflow skill that makes the agent confirm before any such action.