emrg: bump version to v0.2.59 (release: #886 #887 #888 #889 #890)

[argszero]

Summary

Release v0.2.59 — host instruction 2026-08-20T17:42:24. Version bump 0.2.58 → 0.2.59 in all 8 version files (emrg/init.py, pyproject.toml, emrg/gui/package.json + package-lock.json, packaging/build-runtime.sh, make-installer.sh, make-run-installer.sh, uv.lock).

Covers the 5 PRs merged after v0.2.58:

• emrg: bash tool sandbox — file-level isolation for task sessions #886 bash tool sandbox (file-level isolation for task sessions)
• emrg: add DeepSeek Harness to vs-the-competition comparison table #887 README vs-the-competition DeepSeek Harness column
• emrg: remove GUI 'working directory' (project_dir) concept #888 remove GUI working-directory concept
• emrg: isolate stop_daemon in test_stop_all_process_residual_still_aborts (⛔ host red line) #889 isolate stop_daemon in test_stop_all (⛔ host red line)
• emrg: conftest hermeticity guard — un-isolated stop_daemon calls fail loudly (⛔ red line backstop) #890 conftest hermeticity guard (⛔ red line backstop)

Verification

• pytest version-sync + doc-count guards pass (6 tests)
• Full suite: 981 passed + 1 skipped, import + CLI OK

[argszero]

✅ LGTM — cycle 1 (8 files version-only bump 0.2.58→0.2.59, covers #886-#890; version-sync + doc-count guards pass, pytest 981 green, test + test-windows CI PASS)

[argszero]

✅ LGTM — cycle 2 (independent re-review: head c589157 unchanged; 8-file version-only bump 0.2.58→0.2.59; version-sync + doc-count guards pass; test + test-windows CI PASS)

[argszero]

✅ LGTM — cycle 3 (re-review: head unchanged, 8-file version-only bump 0.2.58→0.2.59; version-sync + doc-count guards pass; test + test-windows CI PASS, mergeable CLEAN)