feat(power-automate): v3.0.0 — MCP SDK v2, stateless protocol, zod 4

Major update: migrates from @modelcontextprotocol/sdk@1.30.0 to
@modelcontextprotocol/server@2.0.0 (2026-07-28 stateless MCP spec).

Breaking: requires Node.js >=20 (v2 SDK requirement).

Changes:
- MCP SDK v2 with stateless protocol support
- zod 4 schemas (v4-native, accepted by v2 registerTool)
- createRequire banner for CJS interop in ESM bundle
- All prior fixes preserved (PPAPI DNS fallback, Button trigger fix)

Verified: 56 tools, 116 core tests pass, bundle starts cleanly.

Engine source: https://github.com/matow_microsoft/flow-agent/tree/feat/stateless-mcp

Author: Matt Townsend

plugins/power-automate/.claude-plugin/plugin.json

@@ -1,6 +1,6 @@
 {
   "name": "power-automate",
-  "version": "2.3.1",
+  "version": "3.0.0",
   "description": "Build, edit, run, and debug Power Automate cloud flows via the FlowAgent MCP server — connection lifecycle, surgical edits, copy across environments, run management, and validated expressions.",
   "author": {
     "name": "Microsoft",

plugins/power-automate/.plugin/plugin.json

@@ -1,6 +1,6 @@
 {
   "name": "power-automate",
-  "version": "2.3.1",
+  "version": "3.0.0",
   "description": "Build, edit, run, and debug Power Automate cloud flows via the FlowAgent MCP server — connection lifecycle, surgical edits, copy across environments, run management, and validated expressions.",
   "author": {
     "name": "Microsoft",