Merge origin/main (v1.60.2.0) into garrytan/gstack-fix-wave

Main's #2470 fixes the three free-suite dev-machine drift failures this
branch had independently diagnosed and receipted (eval-list dev-symlink cwd
escape, benchmark-cli case-brittle regex, observability floor). Union merge:
VERSION/package.json stay at this branch's 1.61.0.0 (> main's 1.60.2.0,
allocator-consistent); CHANGELOG keeps 1.61.0.0 on top of main's 1.60.2.0;
TODOS unions both waves' filings (incl. main's new P1 on force-exit-0
masking suite failures).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

CHANGELOG.md

@@ -51,6 +51,41 @@ Interactive skills ask you questions again on current Claude Code. Safety guards
 - 72 new test cases across 9 files, each verified failing against the unfixed code before the fix landed.
 - Three follow-ups filed in TODOS.md: wire `design/test/` into CI (all 8 existing files are invisible to every runner today, plus a documented pre-existing timing flake), /context-save worktree-identity hardening (the #2052 residual), and conditional gbrain reindex-in-place gated on the new drift log.
 
+## [1.60.2.0] - 2026-08-07
+
+## **Three free-suite tests fail-proofed against machine drift.**
+## **Plus a filed P1: the suite's exit code can lie, and now we know why.**
+
+A full-suite health check turned up three tests that failed on dev machines while CI stayed green, all test-side drift rather than product bugs. The eval:list CLI test now spawns from a neutral directory, so slug detection cannot route reads away from the fixture store it seeds (the old cwd made it fail on any machine with the dev symlink). The benchmark CLI's remediation-hint check is case-insensitive, matching the reworded Gemini guidance ("Export GEMINI_API_KEY..."). The session-runner observability floor now expects the 5 wrapped I/O sites that actually exist since the shell-free spawn removed the prompt-file unlink.
+
+### The numbers that matter
+
+Source: this branch's investigation logs (~/.gstack-dev/logs/free-suite-*.log) and per-file reruns.
+
+| Check | Before | After |
+|-------|--------|-------|
+| eval-list-cli on dev machines | 1 fail (reads empty project dir) | 2/2 pass, deterministic everywhere |
+| benchmark-cli remediation hint | 1 fail (case-brittle regex) | 15/15 pass |
+| observability check 11 floor | expects >= 6 markers, counts 5 | floor matches the 5 real sites |
+
+One deeper finding got filed instead of rushed: at least five browse test files force-exit the shared bun process with `setTimeout(() => process.exit(0), 500)`, which can exit 0 before the summary prints and mask real failures. That is now a P1 in TODOS.md with receipts, because removing the exits without fixing the handle leaks they paper over would trade silent failure for hangs.
+
+### What this means for you
+
+`bun test` gives the same verdict on your laptop as in CI for these three tests, and the exit-code trust problem is documented with a concrete fix path instead of lurking.
+
+### Itemized changes
+
+#### Fixed
+
+- `test/eval-list-cli.test.ts`: spawn from neutral cwd + absolute script path so `getProjectEvalDir()` slug probes fail deterministically and the seeded legacy store is read.
+- `test/benchmark-cli.test.ts`: remediation-hint pattern made case-insensitive for the updated Gemini NOT-READY message.
+- `test/helpers/observability.test.ts`: check 11 floor 6 → 5 with the surviving wrapped-I/O sites named.
+
+#### For contributors
+
+- TODOS.md: new P1 (free-suite exit code masked by in-process force-exits, with repro + receipts) filed under Test infrastructure.
+
 ## [1.60.1.0] - 2026-07-09
 
 ## **The /autoplan dual-voice eval is back on the board, catching real regressions.**
@@ -73,7 +108,6 @@ The orphan fix matters beyond one eval: any timed-out `claude -p` child that lea
 ### What this means for you
 
 `bun run test:evals` timeouts fail fast with a transcript instead of silently eating 10+ extra minutes per hung test. And if /autoplan's dual-voice wiring ever breaks, the eval will say so instead of failing for its own reasons.
->>>>>>> origin/main
 
 ### Itemized changes