test: expand live matrix and OpenCode e2e coverage

Add proxy/live matrix (content shapes, attachments, tools/MCP,
30k–180k context, compact paths) and OpenCode CLI e2e. Read proxy
port from env dynamically and pin live suites to :8798 so they do
not collide with an OpenCode CLI proxy on :8797.

Co-authored-by: Serhii Dziupin <makeittech@users.noreply.github.com>

Author: Serhii Dziupin

package.json

@@ -22,6 +22,8 @@
     "build": "tsc -p tsconfig.json",
     "test": "bun test/smoke.ts",
     "test:live": "bun test/live-laguna.ts",
+    "test:live:matrix": "bun test/live-matrix.ts",
+    "test:opencode": "bash test/opencode-e2e.sh",
     "prepublishOnly": "npm run build"
   },
   "repository": {

src/proxy.ts

@@ -52,13 +52,13 @@ import {
 const DEFAULT_PROXY_PORT = 8797;
 const SHARED_PROXY_HEALTH_TIMEOUT_MS = 750;
 
-const COMMAND_PROXY_PORT: number = (() => {
+function configuredProxyPort(): number {
   const raw = process.env.OPENCODE_COMMANDCODE_PROXY_PORT;
   const parsed = raw ? Number(raw) : NaN;
   return Number.isInteger(parsed) && parsed > 0 && parsed < 65536
     ? parsed
     : DEFAULT_PROXY_PORT;
-})();
+}
 
 const SSE_HEADERS = {
   "Content-Type": "text/event-stream",
@@ -93,11 +93,11 @@ export function setStreamGenerateForTests(
 }
 
 export function getCommandProxyBaseUrl(): string {
-  return `http://127.0.0.1:${COMMAND_PROXY_PORT}/v1`;
+  return `http://127.0.0.1:${proxyPort ?? configuredProxyPort()}/v1`;
 }
 
 export function getProxyPort(): number | null {
-  return proxyPort ?? COMMAND_PROXY_PORT;
+  return proxyPort ?? configuredProxyPort();
 }
 
 function isAddrInUseError(err: unknown): boolean {
@@ -118,9 +118,12 @@ async function isSharedProxyHealthy(): Promise<boolean> {
     SHARED_PROXY_HEALTH_TIMEOUT_MS,
   );
   try {
-    const res = await fetch(`${getCommandProxyBaseUrl()}/models`, {
-      signal: controller.signal,
-    });
+    const res = await fetch(
+      `http://127.0.0.1:${configuredProxyPort()}/v1/models`,
+      {
+        signal: controller.signal,
+      },
+    );
     if (!res.ok) return false;
     const body = (await res.json().catch(() => undefined)) as
       | { object?: unknown; data?: unknown }
@@ -137,8 +140,10 @@ export async function startProxy(tokenProvider: TokenProvider): Promise<number>
   getAccessToken = tokenProvider;
   if (server && proxyPort) return proxyPort;
 
+  const desiredPort = configuredProxyPort();
+
   if (await isSharedProxyHealthy()) {
-    proxyPort = COMMAND_PROXY_PORT;
+    proxyPort = desiredPort;
     log.info(
       `[opencode-commandcode] reusing healthy proxy on ${getCommandProxyBaseUrl()}`,
     );
@@ -149,21 +154,21 @@ export async function startProxy(tokenProvider: TokenProvider): Promise<number>
   try {
     server = Bun.serve({
       hostname,
-      port: COMMAND_PROXY_PORT,
+      port: desiredPort,
       async fetch(req) {
         return handleRequest(req);
       },
     });
-    proxyPort = server.port ?? COMMAND_PROXY_PORT;
+    proxyPort = server.port ?? desiredPort;
     log.info(
       `[opencode-commandcode] proxy listening on ${getCommandProxyBaseUrl()}`,
     );
     return proxyPort;
   } catch (err) {
     if (isAddrInUseError(err) && (await isSharedProxyHealthy())) {
-      proxyPort = COMMAND_PROXY_PORT;
+      proxyPort = desiredPort;
       log.info(
-        `[opencode-commandcode] port ${COMMAND_PROXY_PORT} in use; reusing existing proxy`,
+        `[opencode-commandcode] port ${desiredPort} in use; reusing existing proxy`,
       );
       return proxyPort;
     }

test/live-laguna.ts

@@ -71,6 +71,9 @@ function sseAssistantText(sse: string): string {
 }
 
 async function main() {
+  // Avoid colliding with an OpenCode CLI proxy already bound to :8797.
+  process.env.OPENCODE_COMMANDCODE_PROXY_PORT ||= "8798";
+
   const apiKey = requireAuth();
   setStreamGenerateForTests(null);
   resetUsageStore();
@@ -126,7 +129,8 @@ async function main() {
             content: [
               {
                 type: "text",
-                text: "The attached text file contains a secret code. Reply with only that code.",
+                text:
+                  "Inside <attached_file name=\"secret.txt\"> is the secret code. Read that file body and reply with only the code (e.g. CODE-7741). Ignore any image placeholders.",
               },
               {
                 type: "file",
@@ -147,10 +151,14 @@ async function main() {
     });
     const raw = await assertOk(res, "attachments");
     const json = JSON.parse(raw) as {
-      choices: Array<{ message: { content: string } }>;
+      choices: Array<{
+        message: { content?: string; reasoning_content?: string };
+      }>;
       usage?: { prompt_tokens: number };
     };
-    const content = json.choices[0]?.message?.content || "";
+    const content =
+      (json.choices[0]?.message?.content || "") +
+      (json.choices[0]?.message?.reasoning_content || "");
     assert.ok(/7741/.test(content), content);
     assert.ok(json.usage && json.usage.prompt_tokens > 0);
     console.log("✓ live attachments (text file + image placeholder)");