feat: set process title to 'hermes' in ps/top/htop

[teknium1]

Summary

hermes now shows up as hermes in ps/top/htop/pgrep/docker top instead of python3.xx.

Salvage of #35111 by @wenchengxucool, with the mandatory setproctitle dependency dropped so this stays zero-new-deps.

Changes

• hermes_cli/main.py: new _set_process_title(), called first thing in main().
  • Tries setproctitle (optional, best-effort via ImportError guard) — when present, rewrites the full command line so even the ps aux args column reads hermes.
  • Falls back to ctypes prctl(PR_SET_NAME) on Linux / pthread_setname_np on macOS — sets the kernel comm field (htop/top/ps -o comm/pgrep -x hermes/pkill hermes).
  • No-op on Windows and on any failure.
• scripts/release.py: AUTHOR_MAP entry for the contributor's commit email.

No dependency added — the original PR made setproctitle a hard core dep; we keep it strictly optional.

Validation

Both paths exercised live on Linux against the worktree source:

setproctitle	/proc/self/comm	ps -o args
present	hermes	hermes
absent (ctypes fallback)	hermes	unchanged (kernel comm only)

Credit

Implementation by @wenchengxucool (#35111). The function design — try setproctitle, fall back to ctypes — is theirs; we only removed the dependency add so it degrades gracefully when setproctitle isn't installed.

Infographic

[github-actions]

🔎 Lint report: hermes/hermes-baa570d1 vs origin/main

ruff

Total: 0 on HEAD, 0 on base (➖ 0)

🆕 New issues: none

✅ Fixed issues: none

Unchanged: 0 pre-existing issues carried over.

ty (type checker)

Total: 9474 on HEAD, 9473 on base (🆕 +1)

🆕 New issues (1):

Rule	Count
unresolved-import	1

First entries

hermes_cli/main.py:84: [unresolved-import] unresolved-import: Cannot resolve imported module `setproctitle`

✅ Fixed issues: none

Unchanged: 4920 pre-existing issues carried over.

Diagnostics are surfaced as warnings — this check never fails the build.

[alt-glitch]

Salvage/supersedes #35111 (same feature, drops the hard setproctitle dependency). Closes #35108.

[tonydwb]

Code Review Summary

Verdict: Approved

Overview

Clean implementation of process title setting with zero new dependencies. 45 additions across 2 files. Fallback strategy from setproctitle -> ctypes prctl on Linux -> pthread_setname_np on macOS -> no-op on Windows.

What's Right

• Zero new deps: setproctitle is optional (ImportError guard), falls back to ctypes
• Platform-aware: Linux prctl(PR_SET_NAME), Darwin pthread_setname_np, Windows no-op
• Non-fatal: wrapped in try/except at every level
• Proper placement: called first thing in main() before any I/O
• Comment block explains the strategy clearly
• AUTHOR_MAP update credits the original contributor

Safety Assessment

• No security concerns (cosmetic only)
• ctypes calls are well-documented with PR_SET_NAME = 15
• Thread name is limited to 16 bytes including null terminator ("hermes" is 6 bytes)
• No performance impact (runs once at startup)

Reviewed by Hermes Agent (cron)