Add MCP resources for flow development RAG + LOOP mapping fix (v1.7.0)

MCP Resources (3 embedded reference documents):
- wm://docs/flow-language-reference: Complete WmPath format reference,
  all flow step types, LOOP RecordRef mapping rules, common mistakes
- wm://docs/putnode-examples: Tested working examples for simple service,
  INVOKE+LOOP with RecordRef mapping, BRANCH conditional logic
- wm://docs/adapter-service-reference: JDBC Select/Insert settings format

Key discovery (from studying claudedemo.loop:getCustomers):
- LOOP MAPCOPY MUST use type 4 (RecordRef) with doc type qualifier:
  /accounts;4;0;pkg.folder:docType/nestedField;1;0
- MAPSET for record arrays uses <array name="xml" type="record" depth="1">
- MAPDELETE after LOOP cleans up temporary variables

E2E test added: create doc type -> mock service returning record array ->
LOOP service extracting fields -> verify ["Alice","Bob","Carol"]

223 tools + 9 prompts + 3 resources. 155/155 E2E tests passing.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: cpoder

mcp-server-rs/Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "wm-mcp-server"
-version = "1.6.1"
+version = "1.7.0"
 edition = "2024"
 description = "MCP server for managing webMethods Integration Server via pure HTTP API"
 license = "MIT"

mcp-server-rs/Cargo.toml

@@ -2,6 +2,7 @@ mod client;
 mod config;
 mod params;
 mod prompts;
+mod resources;
 mod server;
 
 use client::ISClient;