v0.8.0 — Gated curation, English-default UI, refactor

Added — Gated Skill Curator (I1 completion, §8)

curation_auto (default False) was defined in config but never read — the curator always merged immediately once judge confidence passed the threshold, breaking the "propose first, human applies" philosophy already used for router calibration. Default now only proposes merges (curation_log.status='pending') and waits for a Terapkan (Apply) click on /skills; curation_auto=True still allows direct auto-merge.

• memory/curator.py: new _propose()/apply_pending_merge(), _merge() refactored into shared _apply_merge(); revert_last_merge() only looks at status='applied' rows.
• New endpoint POST /skills/apply-merge + Apply button in the UI.

Added — UI locale (English default, switchable to Indonesian)

All static text across the 9 web pages (nav, buttons, titles, status messages — previously a mix of hardcoded Indonesian) now goes through infra/i18n.py (t()/translator(), ~180 keys). Default English; switch to Indonesian via a dropdown on /settings, stored server-side (ui_locale). Agent response language is untouched — the agent still always replies in whatever language the user writes in; this only affects UI chrome.

Changed — Web UI technical-debt cleanup (from a UI/UX audit)

• Sidebar DRY: markup previously duplicated across 9 templates now lives in web/templates/_sidebar.html, included via a page context var — bonus aria-current="page" on the active nav item.
• CSS split by concern: the 1082-line monolithic style.css is now organized under web/static/css/*.css (base/layout/chat/pages/activity/autopilots/skills/conversations/toast); style.css is a thin @import entry point.
• JS extracted: ~700 lines of inline JS in index.html moved to a cacheable web/static/chat.js, with server-rendered data passed via window.OPENCLAWN_DATA.
• Accessibility/security polish: real SRI integrity hashes (computed from the actual pinned CDN files) for marked/DOMPurify, prefers-reduced-motion support, improved --text-faint contrast (#6f6690 → #7d73a0), aria-live="polite" on SSE-updated regions.

Fixed — Column migration for existing installs

CREATE TABLE IF NOT EXISTS is a no-op on tables that already exist, so columns added after initial release (curation_log.status/merged_content, skills.merged_into/version) never reached older databases — causing a 500 on /skills (no such column: status). DatabaseManager now patches missing columns on existing tables at every startup (PRAGMA table_info + ALTER TABLE ADD COLUMN, idempotent, no data loss).

Fixed — Activity timeline label overlap

A regression from the earlier "evidence" framing: kind labels got longer ("Routing" → "Routing evidence" etc.) but the grid column width wasn't adjusted, so the longest labels overflowed into the title column. Column widened, label allowed to wrap.

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Tests: 513 passing, ruff clean.