feat: integrate Pi backend and Pi Web

pi-web/lib/rpc-manager.test.mjs

@@ -0,0 +1,34 @@
+import assert from "node:assert/strict";
+import { readFile } from "node:fs/promises";
+import test from "node:test";
+
+test("RPC session startup preloads extension-registered providers before restoring models", async () => {
+  const source = await readFile(new URL("./rpc-manager.ts", import.meta.url), "utf8");
+  const startupSource = source.slice(source.indexOf("export async function startRpcSession"));
+
+  assert.match(startupSource, /createAgentSessionServices\(/);
+  assert.match(startupSource, /createAgentSessionFromServices\(/);
+  assert.doesNotMatch(startupSource, /await createAgentSession\(/);
+});
+
+test("custom extension UI receives the fixed headless terminal facade", async () => {
+  const source = await readFile(new URL("./rpc-manager.ts", import.meta.url), "utf8");
+  const customUiSource = source.slice(
+    source.indexOf("private requestExtensionCustomUi"),
+    source.indexOf("private requestExtensionUi"),
+  );
+
+  assert.match(customUiSource, /createHeadlessCustomUiTui\(/);
+  assert.match(customUiSource, /width,/);
+});
+
+test("reloading a session invalidates the models cache", async () => {
+  const source = await readFile(new URL("./rpc-manager.ts", import.meta.url), "utf8");
+  const reloadSource = source.slice(
+    source.indexOf('case "reload"'),
+    source.indexOf('case "abort_compaction"'),
+  );
+
+  assert.match(reloadSource, /await this\.inner\.reload\(\)/);
+  assert.match(reloadSource, /this\.applyForcedEmptySystemPrompt\(\);\s*invalidateModelsCache\(\)/);
+});