fix: handle non-string values in jsonToEnv and fix file extension

src/index.ts

@@ -13,7 +13,7 @@ const command = define({
     console.error("Error: Please specify a subcommand (init, set, get, pull, or delete)");
     console.error("");
     console.error("Usage:");
-    console.error("  e2sm init   - Initialize .e2smrc.json configuration file");
+    console.error("  e2sm init   - Initialize .e2smrc.jsonc configuration file");
     console.error("  e2sm set    - Upload .env file to AWS Secrets Manager");
     console.error("  e2sm get    - Display secret from AWS Secrets Manager");
     console.error("  e2sm pull   - Pull secret and generate .env file");

src/lib/env.test.ts

@@ -117,6 +117,26 @@ describe("jsonToEnv", () => {
     const result = jsonToEnv({ FOO: "bar\nbaz" });
     expect(result).toBe('FOO="bar\nbaz"');
   });
+
+  test("converts number values to string", () => {
+    const result = jsonToEnv({ PORT: 3000, DEBUG: 1 });
+    expect(result).toBe('PORT="3000"\nDEBUG="1"');
+  });
+
+  test("converts boolean values to string", () => {
+    const result = jsonToEnv({ ENABLED: true, DISABLED: false });
+    expect(result).toBe('ENABLED="true"\nDISABLED="false"');
+  });
+
+  test("converts null and undefined to string", () => {
+    const result = jsonToEnv({ NULL_VAL: null, UNDEF_VAL: undefined });
+    expect(result).toBe('NULL_VAL="null"\nUNDEF_VAL="undefined"');
+  });
+
+  test("converts object values to string", () => {
+    const result = jsonToEnv({ OBJ: { nested: "value" } });
+    expect(result).toBe('OBJ="[object Object]"');
+  });
 });
 
 describe("generateEnvHeader", () => {

src/lib/env.ts

@@ -46,10 +46,11 @@ export function parseEnvContent(content: string): Record<string, string> {
 /**
  * Converts JSON object to .env format string.
  */
-export function jsonToEnv(data: Record<string, string>): string {
+export function jsonToEnv(data: Record<string, unknown>): string {
   return Object.entries(data)
     .map(([key, value]) => {
-      const escaped = value.replace(/"/g, '\\"');
+      const stringValue = typeof value === "string" ? value : String(value);
+      const escaped = stringValue.replace(/"/g, '\\"');
       return `${key}="${escaped}"`;
     })
     .join("\n");