emrg: bump version to v0.2.53 (release: #863 #864)

[argszero]

Release v0.2.53 bump (host rant 2026-08-19T11:41:56). v0.2.52 shipped #857-#861; this release carries the two commits merged after the v0.2.52 tag:

• emrg: vibe-check session-history evidence + scheduler [task] log column (rants 10:15:43 + 10:18:44) #863 — vibe-check session-history evidence + scheduler [task] log column (77e260c)
• emrg: tool intent parameter replaces static purpose (rants 10:33:29 + 10:35:24) #864 — tool intent parameter replaces static purpose (c67fa3e)

8 files / 9 refs bumped 0.2.52 → 0.2.53 (standard release pattern). Local import + CLI verified; full suite runs in CI.

[argszero]

✅ LGTM — cycle (1/3): head cc09f0c, CI test + test-windows PASS (32213246312). Diff verified = 8 files / 9 refs 0.2.52→0.2.53 (emrg/init.py, gui package.json + package-lock.json ×2, packaging build-runtime/make-installer/make-run-installer, pyproject.toml, uv.lock); release covers #863 + #864 merged after the v0.2.52 tag.

[argszero]

✅ LGTM — cycle (2/3): head cc09f0c unchanged, 8 files / 9 refs version-only bump 0.2.52→0.2.53 (exact #862 pattern), CI test + test-windows PASS (32213246312), MERGEABLE/CLEAN. Release covers #863 (vibe-check session-history + [task] log column) + #864 (tool intent).

[argszero]

✅ LGTM — cycle (3/3): head cc09f0c unchanged, 8 files/9 refs version-only bump 0.2.52→0.2.53, CI test + test-windows PASS (32213246312), MERGEABLE/CLEAN. Three consecutive approvals from cycles 869/870/871 — merging.