chore(goose-v149): refresh merge-prep baselines and fix local build script

Fix build-goosed-v149-local.sh vendor/v8 paths after cd into the v149 worktree,
record phase3/memory drift evidence, and update phase3 closeout gate status.

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

docs/baselines/goose-v149-message-sanitize-latest.json

@@ -1,6 +1,6 @@
 {
   "schemaVersion": "goose-v149-message-sanitize-v2",
-  "capturedAt": "2026-09-09T13:35:24.843Z",
+  "capturedAt": "2026-09-10T03:14:25.656Z",
   "v149": {
     "root": "/Users/john/Project/tkmind_go-v149",
     "version": "1.49.0",

docs/baselines/goose-v149-thinking-preservation-latest.json

@@ -1,6 +1,6 @@
 {
   "schemaVersion": "goose-v149-thinking-preservation-v1",
-  "capturedAt": "2026-09-09T13:47:20.080Z",
+  "capturedAt": "2026-09-10T03:30:18.287Z",
   "worktree": "/Users/john/Project/tkmind_go-v149",
   "tests": [
     "test_deepseek_thinking_preserved_in_tool_call_message",