chore(nodejs): use 0.0.0-dev version sentinel for consistency

The Node SDK committed a real-looking version (0.1.8) in package.json and
reset to 0.1.0 in the package script, unlike the .NET and Rust SDKs which
use a 0.0.0-dev sentinel. CI injects the real version at publish via
set-version.js, so the committed value should be an unmistakable dev
placeholder rather than a stale real version.

Align package.json, the package script, set-version.js default, and the
package-lock.json files (including nodejs/samples) to 0.0.0-dev.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: stephentoub

nodejs/package-lock.json

@@ -4,7 +4,7 @@
         "type": "git",
         "url": "https://github.com/github/copilot-sdk.git"
     },
-    "version": "0.1.8",
+    "version": "0.0.0-dev",
     "description": "TypeScript SDK for programmatic control of GitHub Copilot CLI via JSON-RPC",
     "main": "./dist/cjs/index.js",
     "types": "./dist/index.d.ts",
@@ -44,7 +44,7 @@
         "generate": "cd ../scripts/codegen && npm run generate",
         "update:protocol-version": "tsx scripts/update-protocol-version.ts",
         "prepublishOnly": "npm run build",
-        "package": "npm run clean && npm run build && node scripts/set-version.js && npm pack && npm version 0.1.0 --no-git-tag-version --allow-same-version"
+        "package": "npm run clean && npm run build && node scripts/set-version.js && npm pack && npm version 0.0.0-dev --no-git-tag-version --allow-same-version"
     },
     "keywords": [
         "github",

nodejs/package.json

@@ -3,7 +3,7 @@ import { readFileSync, writeFileSync } from "fs";
 import { dirname, join } from "path";
 import { fileURLToPath } from "url";
 
-const version = process.env.VERSION || "0.1.0-dev";
+const version = process.env.VERSION || "0.0.0-dev";
 const packageJsonPath = join(dirname(fileURLToPath(import.meta.url)), "..", "package.json");
 
 const packageJson = JSON.parse(readFileSync(packageJsonPath, "utf8"));