v0.6.0 — cislunar /fly + /fleet + landing page + Observation/Life-in-space science tabs

The cislunar release. /fly learns Moon-mission geometry — every Apollo-class free-return, Artemis hybrid free-return, Chandrayaan-3 spiral, and Chang'e LOR rendered as its own per-profile trajectory in an Earth-centred view. The /science encyclopedia grows two new tabs (Observation + Life in Space). A new top-level /fleet explorer ships. And the visit starts on a real landing page at / instead of an explore-redirect.

Added — cislunar /fly view (ADR-058)

• Per-mission cislunar trajectory machinery — buildCislunarTrajectory() parses each Moon mission's new flight.cislunar_profile (parking orbit, TLI ∆v + C3, translunar type, lunar arrival altitude / periselene, return ∆v) and produces a typed phase sequence (parking → tli_coast → lunar_arrival → tei_coast → reentry). 17 Moon missions populated (Apollo 11/13/17 + Artemis 2/3 + Luna 9/17/24 + LRO + Clementine + Chandrayaan 1/3 + Chang'e 4/5/6 + SLIM + Blue Moon Mk1).
• Earth-Centred Inertial scene at true Earth-Moon scale (SCALE_CISLUNAR = 1/10 000) — auto-engages for any mission whose dest === 'MOON'. Phase-coloured trajectory lines, ∆v annotation sprites, real Earth + Moon textures, moon-frame group that tracks lunar drift so lunar-orbit / descent / ascent phases anchor to the Moon as it moves.
• Auto-zoom across phases — camera close to Earth during parking / spiral_earth / reentry, pulled back across translunar coast, lerped in toward the Moon during lunar_orbit / lunar_flyby / descent / ascent. Mouse-wheel during a phase wins; next phase transition re-arms the lerp.
• Moon-proximity override — flyby-only profiles (Artemis II, Apollo 13) have no explicit lunar_flyby phase, so the camera now zooms whenever the spacecraft computes to within 80 000 km of the Moon centre, regardless of phase type.
• 8 science layers wired into the cislunar scene at parity with heliocentric — hover, soi, gravity, velocity, centripetal, apsides, coast, conics. SoI rings sized to Earth (924 000 km) + Moon (66 100 km). Coast preview integrates a two-body Earth-gravity prediction forward 33 h.
• Heliocentric auto-zoom (interplanetary missions) — DEPARTURE close-up on Earth → wide cruise framing on the Earth↔destination midpoint → APPROACH close-up on the live destination. Mirror sub-phases for round-trips. Tube drawRange round-snaps to whole segments so the sprite stays aligned with the trajectory tip under close-up zoom.
• 2D cislunar fallback for the /fly 2D toggle — same per-mission geometry rendered to canvas with Earth at centre and an auto-zoom on lunar phases.
• Apollo 13 added as the 37th mission — free-return flyby with aborted LOI.

Added — /science Observation + Life in Space tabs

• Observation tab (S1–S3 / issues #80 #81) — 7 sections covering Adaptive Optics · Black Holes · Coronagraphs · Interferometry · Space Photography · Spectroscopy · Wormholes. New ObservatoryShowcase strip on the space-photography section gallery imagery expanded to 96 observatory images across the fleet gallery pipeline.
• Life in Space tab (S2 / issue #80) — sections covering microgravity, radiation, IVA, EVA, lunar suits, long-duration life support, and crew-health topics. Three new suit-family sections (IVA / EVA / lunar suits) cross-link to /fleet.
• /science now spans 85 sections across 10 tabs (was 54 / 8). 71 hand-coded SVG diagrams (was 62) — one per section + 10 tab covers, with the fail-closed integrity gate enforcing the count on every build.
• Diagram polish pass — S6 wave repaints 50+ existing diagrams across orbits / transfers / propulsion / mission-phases / porkchop / scales-time to match the latest design-system tokens (flag flips, blueprint accents).
• photo field wired into section pages — high-value imagery embedded on 18 sections (NASA / ESA observatory + agency photography), all with full image-provenance coverage.

Added — /fleet explorer + space-suit category

• New top-level /fleet route — bill-of-materials view across the fleet (rockets, capsules, landers, rovers, orbiters, observatories) and now space-suits. Selection halos, per-planet pill colors on filters, Mars labels.
• Space-suit category — 13 suit-family entries (en-US) with full provenance + i18n wave 2/3 across 12 locales + sr-Cyrl manual overlays for the 3 new suit sections. Wired into validate-data + schemas. Krechet placeholder + sokol-m fallbacks. linked_missions use real mission IDs.

Added — root / landing page (PRD-013 / UXS-013 / Issue #74)

• Real landing replacing the / → /explore 307 redirect — hero (ORRERY 96 px wordmark + tagline + two CTAs), what-is-this section, why-this-exists section, multi-paragraph guided tour, 11-card grid covering every primary nav destination + /fleet, footer block linking to GitHub / README / License / Credits / Library / Technical Authority. Long-form scrollable single column, mobile-first (375 px → 1-col cards). 49 new landing_* keys translated to all 14 supported locales. Browser-locale auto-detection on first paint. 10 e2e tests on desktop + mobile.

Added — Dutch locale + i18n coverage

• Dutch (nl) locale — 14th supported language (issue #72). Full UI bundle (711 keys) at 100% parity with the other 13 locales. Native name Nederlands, short tag NL, flag 🇳🇱. LocalePicker entry added between Italiano and Српски. Translations follow the ESA-NL physics/astronomy glossary; mission and agency proper nouns kept in original.
• Dutch entity overlay tree — full coverage across missions / planets / sun / rockets / earth-objects / moon-sites / mars-sites / iss-modules / iss-visitors / tiangong-modules / tiangong-visitors / scenarios (161 files).
• /science overlay gap closed for es/de/fr/it — 14 files (history/_intro + 6 history sections + space-stations/_intro + 4 space-stations sections + mission-phases/eva + scales-time/long-duration) translated for the four EU locales that already had partial coverage. Brings es/de/fr/it from 49 → 63 /science files each.
• iss-visitors/ overlays for all 13 non-en-US locales — closes the en-US-only gap for cargo_dragon, crew_dragon, cygnus, htv_x, progress_ms, soyuz_ms, starliner. 7 files × 13 locales = 91 new files.
• i18n wave 2/3 for 28 new sections + 13 suit entries across the 12 non-en-US locales.

Added — Mobile + Browser-locale ergonomics (ADR-057)

• Browser-locale URL canonicalisation (Issue #73 Gap 1) — auto-detected locales rewrite the URL to the canonical ?lang=de form via replaceState, so bookmarks and share-links carry the locale. 10 unit + 5 e2e tests.
• orrery_locale cookie for explicit locale overrides (Issue #73 Gap 2 / ADR-057 Accepted) — single functional cookie (SameSite=Lax, 1-year, no PII), written only on explicit LocalePicker click. Sits between URL and navigator.language in the resolution chain. Auto-detect paths never write the cookie.
• Mobile UX overhaul — hamburger nav, collapsible /fly HUD on narrow viewports, compact /science section rail, footer-overlay improvements, per-planet pill colors.
• Build version in footer — Credits | Library | v0.6.0 strip; version injected via Vite define from package.json.
• Nav wordmark polish — bumped to 36 px, vertically centred within the 52 px nav bar.

Added — Documentation + tooling

• Tech BOM generator (closes #92) — scripts/build-tech-bom.ts writes docs/TECH-BOM.md listing every npm package shipped or used at build time, with version + license. License-audited fail-closed in CI.
• PRD-014 + RFC-017 — Surface Hotspots (progressive landing-site exploration).
• ADR-055, ADR-056, ADR-057, ADR-058 — i18n cookie scope, surface-map design, locale persistence cookie scope, cislunar /fly architecture.

Changed

• /fly left rail consolidated — identity / navigation / flight-params / systems / spacecraft-state stack flush in one column. Top-controls bar puts FlightDirectorBanner + ScienceLayersPanel side-by-side instead of stacked vertically.
• Solar / Cislunar /fly toggle de-scoped (ADR-058 amendment) — Moon missions render exclusively in cislunar view; heliocentric Moon-mode no longer toggleable. The PiP context inset was also dropped during smoke-testing.
• Mars + maps polish — selection halos on /mars / /moon, label rendering for Mars sites, drop redundant README footer link.

Fixed

• CI e2e timeout bumped 25 → 40 min for the v0.6 suite size.
• apollo13.jpg sourced + suit-diagram spec-panel fixes; sokol-m placeholder.
• Tech BOM GitHub-shorthand + LICENSE URL — unblocks the deploy.
• Heliocentric tube/sprite alignment under close-up auto-zoom — round-snap fixes the visible offset.
• Artemis II cislunar zoom — Moon-proximity check now fires for hybrid-free-return profiles that skip the explicit lunar_flyby phase.

Dependencies

• Bulk Dependabot bump — vitest 2 → 4 · svelte 5.16 → 5.55 + 4 minor.