chore(refactor): snapshot test baseline + no-regression gate truoc refactor open-sse

Co-authored-by: Cursor <cursoragent@cursor.com>

.gitignore

@@ -72,3 +72,6 @@ ecosystem.config.*
 scripts/agSniffer/*
 gitbooks/*
 gitbook/README.md
+
+# Refactor backup reference (do not bundle/lint)
+open-sse.old/

tests/__baseline__/known-fails.txt

@@ -0,0 +1,26 @@
+tests/unit/antigravity-mitm.test.js :: Antigravity MITM model handling flags the out-of-box agent/Default model mandatory
+tests/unit/claude-header-forwarding.test.js :: proxyAwareFetch — api.anthropic.com routing routes api.anthropic.com to gotScraping (non-streaming) and returns ok response
+tests/unit/kiro-model-slots.test.js :: Kiro MITM model slots offers a mappable slot for the agent default model id 'auto'
+tests/unit/oauth-cursor-auto-import.test.js :: GET /api/oauth/cursor/auto-import extracts tokens using exact keys
+tests/unit/oauth-cursor-auto-import.test.js :: GET /api/oauth/cursor/auto-import falls back to fuzzy key matching on macOS when exact keys are missing
+tests/unit/oauth-cursor-auto-import.test.js :: GET /api/oauth/cursor/auto-import linux uses single hardcoded path and original error message
+tests/unit/oauth-cursor-auto-import.test.js :: GET /api/oauth/cursor/auto-import returns descriptive error if macOS db file exists but cannot be opened
+tests/unit/oauth-cursor-auto-import.test.js :: GET /api/oauth/cursor/auto-import returns login-prompt error when tokens are missing even after fallback
+tests/unit/oauth-cursor-auto-import.test.js :: GET /api/oauth/cursor/auto-import returns not-found when no macOS cursor db paths are accessible
+tests/unit/oauth-cursor-auto-import.test.js :: GET /api/oauth/cursor/auto-import unsupported platform returns 400
+tests/unit/oauth-cursor-auto-import.test.js :: GET /api/oauth/cursor/auto-import unwraps JSON-encoded string values
+tests/unit/openai-to-claude.test.js :: openaiToClaudeResponse omits empty Read pages tool argument before emitting Claude input deltas
+tests/unit/rtk.test.js :: RTK flag default off, toggle works
+tests/unit/rtk.test.js :: compressMessages (disabled) returns null when disabled
+tests/unit/rtk.test.js :: compressMessages (enabled) compresses Claude array-form tool_result text parts
+tests/unit/rtk.test.js :: compressMessages (enabled) compresses Claude string-form tool_result
+tests/unit/rtk.test.js :: compressMessages (enabled) compresses OpenAI tool message (string content)
+tests/unit/rtk.test.js :: compressMessages (enabled) handles mix of messages without crashing
+tests/unit/rtk.test.js :: compressMessages (enabled) never produces empty content (R14 guard)
+tests/unit/rtk.test.js :: compressMessages (enabled) skips below MIN_COMPRESS_SIZE (<500 bytes)
+tests/unit/rtk.test.js :: compressMessages (enabled) skips is_error tool_result
+tests/unit/rtk.test.js :: compressMessages (enabled) skips when body has no messages
+tests/unit/translator-request-normalization.test.js :: request normalization claudeToOpenAIRequest flattens text-only content arrays into string
+tests/unit/translator-request-normalization.test.js :: request normalization filterToOpenAIFormat flattens text-only arrays to string
+tests/unit/translator-request-normalization.test.js :: request normalization parseSSELine supports provider raw NDJSON stream lines
+tests/unit/translator-request-normalization.test.js :: request normalization translateRequest keeps /v1/messages Claude->OpenAI text payloads string-safe

tests/__baseline__/verify-no-regression.mjs

@@ -0,0 +1,28 @@
+// Gate: so kết quả test hiện tại với baseline known-fails.
+// PASS nếu KHÔNG có test nào pass(baseline) → fail(now). Test mới được phép.
+// Usage: node tests/__baseline__/verify-no-regression.mjs <current-results.json>
+import { readFileSync } from "fs";
+
+const knownFails = new Set(
+  readFileSync(new URL("./known-fails.txt", import.meta.url), "utf8")
+    .split("\n").map(s => s.trim()).filter(Boolean)
+);
+
+const resultsPath = process.argv[2];
+if (!resultsPath) { console.error("Missing results.json path"); process.exit(2); }
+
+const r = JSON.parse(readFileSync(resultsPath, "utf8"));
+const nowFails = r.testResults.flatMap(f =>
+  f.assertionResults.filter(a => a.status === "failed")
+    .map(a => f.name.split("/app/")[1] + " :: " + a.fullName)
+);
+
+// Regression = fail bây giờ NHƯNG không có trong baseline known-fails
+const regressions = nowFails.filter(f => !knownFails.has(f));
+
+if (regressions.length) {
+  console.error(`\n❌ REGRESSION: ${regressions.length} test pass→fail:\n`);
+  regressions.forEach(f => console.error("  - " + f));
+  process.exit(1);
+}
+console.log(`✅ No regression. (now fails=${nowFails.length}, baseline known=${knownFails.size}, all known)`);