chore: import upstream snapshot with attribution

tests/unit/model-parse.test.ts

@@ -0,0 +1,50 @@
+import { test } from "node:test";
+import assert from "node:assert/strict";
+import { normalizeCrossProxyModelId, parseModel } from "../../open-sse/services/model.ts";
+
+// [1m] extended context suffix — PR #311 (DavyMassoneto)
+test("[1m] suffix: strips suffix and sets extendedContext=true", () => {
+  const result = parseModel("claude-sonnet-4-6[1m]");
+  assert.strictEqual(result.model, "claude-sonnet-4-6");
+  assert.strictEqual(result.extendedContext, true);
+});
+
+test("[1m] suffix: normal model has extendedContext=false", () => {
+  const result = parseModel("claude-sonnet-4-6");
+  assert.strictEqual(result.model, "claude-sonnet-4-6");
+  assert.strictEqual(result.extendedContext, false);
+});
+
+test("[1m] suffix: works with provider prefix", () => {
+  const result = parseModel("claude/claude-sonnet-4-6[1m]");
+  assert.strictEqual(result.model, "claude-sonnet-4-6");
+  assert.strictEqual(result.extendedContext, true);
+});
+
+test("parseModel trims provider prefix and model id", () => {
+  const result = parseModel("  cx / gpt-5.4  ");
+  assert.strictEqual(result.providerAlias, "cx");
+  assert.strictEqual(result.provider, "codex");
+  assert.strictEqual(result.model, "gpt-5.4");
+});
+
+test("parseModel treats exact slashful model ids as models, not provider prefixes", () => {
+  const result = parseModel("openai/gpt-oss-120b");
+  assert.strictEqual(result.provider, null);
+  assert.strictEqual(result.providerAlias, null);
+  assert.strictEqual(result.isAlias, true);
+  assert.strictEqual(result.model, "openai/gpt-oss-120b");
+});
+
+test("normalizeCrossProxyModelId maps supported external dialects to canonical ids", () => {
+  assert.deepEqual(normalizeCrossProxyModelId("gpt-oss:120b"), {
+    modelId: "gpt-oss-120b",
+    applied: true,
+    original: "gpt-oss:120b",
+  });
+  assert.deepEqual(normalizeCrossProxyModelId("qwen3-coder:480b"), {
+    modelId: "Qwen/Qwen3-Coder-480B-A35B-Instruct",
+    applied: true,
+    original: "qwen3-coder:480b",
+  });
+});