Improve module path resolution and macOS compatibility (#172)

This pull request introduces several improvements and fixes across the
MCP server and supporting scripts. The most notable changes include a
more robust check for script invocation, improved compatibility for
temporary file creation on macOS, and metadata updates.

**Server invocation and compatibility improvements:**

* Improved the script invocation check in `server.mjs` to use
`realpathSync` and `fileURLToPath`, making it more robust and reliable
across symlinked environments. (`mcp-server/server.mjs`,
`[mcp-server/server.mjsL1596-R1599](diffhunk://#diff-fa2b329c088195110d7f59f714c29a003b1cd1804716bb67acdacb4888ec3ef1L1596-R1599)`)
* Updated import statements in `server.mjs` to remove unused imports and
add `realpathSync`, simplifying the code and reducing dependencies.
(`mcp-server/server.mjs`,
`[mcp-server/server.mjsR4-R8](diffhunk://#diff-fa2b329c088195110d7f59f714c29a003b1cd1804716bb67acdacb4888ec3ef1R4-R8)`)

**Script enhancements for macOS:**

* Modified `verify-hitl-staging.sh` to use a macOS-safe method for
creating temporary files with `mktemp`, improving compatibility and
reliability on macOS systems. (`scripts/verify-hitl-staging.sh`,
`[scripts/verify-hitl-staging.shL16-R16](diffhunk://#diff-9154b6d85679f4d5188e393c955ec759bd0d2d67a0b9844fe5d9723bac72c5e8L16-R16)`)
* Cleaned up comments and removed redundant lines in
`verify-hitl-staging.sh` for clarity and maintainability.
(`scripts/verify-hitl-staging.sh`,
`[[1]](diffhunk://#diff-9154b6d85679f4d5188e393c955ec759bd0d2d67a0b9844fe5d9723bac72c5e8L2-R2)`,
`[[2]](diffhunk://#diff-9154b6d85679f4d5188e393c955ec759bd0d2d67a0b9844fe5d9723bac72c5e8L26)`)

**Metadata updates:**

* Added the `mcpName` field to `package.json` to specify the MCP
server's identity, aiding in package management and identification.
(`mcp-server/package.json`,
`[mcp-server/package.jsonR4](diffhunk://#diff-f3494fd36ee5f868a34336de16a47abd48792d43efeb619ed167c8067ec1630fR4)`)

---
Co-authored-by: Rajat Patra <113469515+RawJat@users.noreply.github.com>

Author: DinanathDash

mcp-server/package.json

@@ -1,6 +1,7 @@
 {
   "name": "@dinanathdash/envault-mcp-server",
   "version": "1.10.0",
+  "mcpName": "io.github.DinanathDash/envault",
   "type": "module",
   "description": "MCP server for Envault CLI operations",
   "license": "SEE LICENSE IN LICENSE",

mcp-server/server.mjs

@@ -1,10 +1,11 @@
 #!/usr/bin/env node
 
 import fs from "node:fs/promises";
+import { realpathSync } from "node:fs";
 import path from "node:path";
 import { execFile } from "node:child_process";
 import { promisify } from "node:util";
-import { fileURLToPath, pathToFileURL } from "node:url";
+import { fileURLToPath } from "node:url";
 import crypto from "node:crypto";
 import os from "node:os";
 
@@ -1593,7 +1594,9 @@ async function main() {
 const invokedAsScript = (() => {
   try {
     if (!process.argv[1]) return false;
-    return import.meta.url === pathToFileURL(process.argv[1]).href;
+    const currentModulePath = realpathSync(fileURLToPath(import.meta.url));
+    const argvModulePath = realpathSync(path.resolve(process.argv[1]));
+    return currentModulePath === argvModulePath;
   } catch {
     return false;
   }

scripts/verify-hitl-staging.sh

@@ -1,7 +1,5 @@
 #!/bin/bash
-
-# verify-hitl-staging.sh
-# Creates a mock payload and sends it to the HITL pipeline to verify proper interception.
+# verify-hitl-staging.sh (macOS Optimized)
 
 if [ -z "$ENVAULT_TOKEN" ] || [ -z "$ENVAULT_BASE_URL" ]; then
   echo "Error: ENVAULT_TOKEN and ENVAULT_BASE_URL must be set."
@@ -13,8 +11,9 @@ PAYLOAD='{"project_id":"mock-project","environment":"staging","secrets":{"MOCK_S
 
 echo "Testing HITL Mutation Endpoint: $ENDPOINT"
 
-# Execute curl request, capturing HTTP status code and response body separately
-RESPONSE_FILE=$(mktemp)
+# macOS-safe temporary file creation
+RESPONSE_FILE=$(mktemp /tmp/envault_hitl.XXXXXX)
+
 STATUS_CODE=$(curl -L -s -w "%{http_code}" -o "$RESPONSE_FILE" -X POST "$ENDPOINT" \
   -H "Authorization: Bearer $ENVAULT_TOKEN" \
   -H "Content-Type: application/json" \
@@ -23,7 +22,6 @@ STATUS_CODE=$(curl -L -s -w "%{http_code}" -o "$RESPONSE_FILE" -X POST "$ENDPOIN
 BODY=$(cat "$RESPONSE_FILE")
 rm -f "$RESPONSE_FILE"
 
-# Evaluate the HTTP status code
 if [ "$STATUS_CODE" -eq 202 ]; then
   echo -e "\033[0;32mHITL Gate Active: Mutation safely queued for approval.\033[0m"
   exit 0
@@ -34,4 +32,4 @@ else
   echo -e "\033[0;31mError: Received HTTP $STATUS_CODE\033[0m"
   echo "Response Body: $BODY"
   exit 1
-fi
+fi