Add external plugin blea (#2617)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

.github/plugin/marketplace.json

@@ -166,6 +166,31 @@
       "description": "Wander an endless first-person backrooms in a Copilot canvas while agents work; their status ghost-writes on the walls.",
       "version": "1.0.0"
     },
+    {
+      "name": "blea",
+      "description": "Safe, agent-first Bluetooth Low Energy diagnostics with portable evidence capture/diff/replay and guarded writes through a Skill, CLI, and local MCP server.",
+      "version": "0.6.1",
+      "author": {
+        "name": "Nitmi",
+        "url": "https://github.com/Nitmi"
+      },
+      "repository": "https://github.com/Nitmi/blea",
+      "license": "MIT",
+      "keywords": [
+        "bluetooth-low-energy",
+        "ble",
+        "hardware",
+        "agent-plugin",
+        "agent-skill",
+        "cli",
+        "mcp"
+      ],
+      "source": {
+        "source": "github",
+        "repo": "Nitmi/blea",
+        "sha": "5b4b325e5d4a444f328366dff89e81dd2bda36ed"
+      }
+    },
     {
       "name": "brainmaxxing",
       "description": "Codebase-grounded concept-mastery quizzes with an interactive BrainMax Canvas dashboard.",