fix(opencode-plugin): recover MEM0_API_KEY from shell profiles (#6404)

integrations/mem0-plugin/.opencode-plugin/api-key.ts

@@ -0,0 +1,30 @@
+import {readFileSync} from "fs";
+import {homedir} from "os";
+import {join} from "path";
+
+const PROFILE_FILES = [".zshrc", ".bashrc", ".zprofile", ".bash_profile", ".profile"];
+
+export function parseApiKeyLine(line: string): string | undefined {
+  const match = line.match(/^\s*(?:export\s+)?MEM0_API_KEY=(.*)$/);
+  if (!match) return undefined;
+
+  const value = match[1].replace(/#.*$/, "").trim().replace(/^("|')(.*)\1$/, "$2").trim();
+  return value && !value.startsWith("$") ? value : undefined;
+}
+
+export function resolveApiKey(env: NodeJS.ProcessEnv = process.env, homeDir = homedir()): string {
+  const explicit = env.MEM0_API_KEY?.trim();
+  if (explicit) return explicit;
+
+  for (const profile of PROFILE_FILES) {
+    try {
+      for (const line of readFileSync(join(homeDir, profile), "utf8").split(/\r?\n/)) {
+        const key = parseApiKeyLine(line);
+        if (key) return key;
+      }
+    } catch {
+    }
+  }
+
+  return "";
+}