v0.51.13 — Single-PR composer UX

✨ Added

• #1758 by @nesquena-hermes — Click pasted/attached image thumbnails in the composer to lightbox-zoom them. When pasting/dropping screenshots into the composer, the 56×56 thumbnail in each chip now opens the existing image lightbox on click — same modal that's been wired for message-attached images since v0.50.x. Cursor changes to zoom-in (was default, actively misleading); subtle hover emphasis (4% scale + 5% brightness, hover-capable devices only). Audio/video chips unaffected. Refs #1733. Pairs with companion Mac PR hermes-webui/hermes-swift-mac#74 for sequential-paste filename uniqueness.

🧪 Tests

4637 → 4642 collected (+5 regression tests). 4630 passed, 0 failed.

✅ Pre-release verification

• @nesquena APPROVED with exhaustive headless-Chrome behavioural harness verifying all 4 click paths (thumb-image, ×-on-image, ×-on-audio, audio-element).
• Pre-fix: 4/5 of the new tests verified to FAIL on origin/master — the right shape of regression coverage.
• All JS files syntax-clean.
• Browser API sanity (11/11) — all pass.
• Opus advisor: SHIP, 0 MUST-FIX. One minor nit absorbed in-release: wrap .attach-thumb:hover in @media (hover: hover) for iPad sticky-hover hygiene (3-LOC defensive cleanup).

🙏 Refs

• #1733 (request)
• Companion Mac PR: hermes-webui/hermes-swift-mac#74 (sequential-paste filename uniqueness)

Full Changelog: v0.51.12...v0.51.13