// OVE — app identity + version stamp.
//
// Single source of truth for the product name and version shown in the UI
// (header, footer, document title). Bump APP_VERSION whenever we ship a
// large change so the running build can always be identified at a glance —
// useful both for the z.ai Version History and for naming local backups
// (v6.0 = rename to Open Visualization Engine + version indicator).
//
// STANDING RULE (since v7.6): every APP_VERSION bump MUST come with a
// matching entry at the top of RELEASE_NOTES in src/lib/release-notes.ts —
// that list powers the header's "What's New!" dialog. A dev-mode guard
// warns in the console when the two drift apart.
//
// History:
//   7.11 — the community OVE-Directory. A sixth tab (Directory) lists every
//           script published to the community directory — a separate VPS at
//           s3374dir.openvisengine.com, reached ONLY through this server's
//           backend proxy (/api/ove-directory/*), which holds the API key in
//           env and re-validates every upload (the share string must decode
//           AND compile). Publishing: the Script tab gains "Upload to
//           OVE-Directory" (enabled only while the editor shows ✔ Compiled OK
//           with no runtime error); the script travels as its Script⇢Hash
//           string, so the directory stores a fraction of the source. The
//           listing carries each entry's name, type and date, a 1–5 star
//           widget (the voter id is an HttpOnly cookie minted by the proxy;
//           one vote per script per visitor, enforced upstream), the live
//           "Average: #.#" to the right of the stars, and sorting by Name /
//           Type / Date / Rating (done upstream, both directions). "Get"
//           fetches the full record, decodes the hash back into the exact
//           script, files it in this browser's preset tree under
//           root/user created/OVE-Directory (content-deduped, names numbered
//           "(1) (2) (3)…" on collision) and offers "Open in editor".
//           Duplicate uploads resolve as success (409 DUPLICATE_HASH carries
//           the existing row); duplicate votes show the stored aggregates.
//   7.10 — ten demo tracks + first-person changelog + declutter. The demo
//           source is now a COLLECTION: ten mastered tracks in
//           public/demo-tracks/ (demo-01.mp3 … demo-10.mp3, filename order
//           1→10, replacing the single Neural Mecha Pulse file). Each Demo
//           click plays the visitor's PLACE in the collection once through;
//           the place advances when a pass truly ends — natural finish or
//           the Stop button ('ended'/'stop' teardown reasons, a new
//           onDemoEnded signature) — and wraps 10→1; switching to another
//           source keeps the place. The place persists per visitor in
//           localStorage (ove.demoTrack.next), so returning picks up where
//           they left off. The engine caches one decoded buffer at a time,
//           keyed by track index (~50–60 MB PCM each — all ten would be half
//           a gigabyte). The header chip + footer SRC label show the current
//           track's name (Demo Track N). RELEASE_NOTES rewritten in the
//           operator's first-person voice (no more third-person marketing
//           copy or addressing the visitor), and every em dash in the
//           interface replaced with a plain double minus ( -- ) — including
//           the embedded preset library's descriptions and script comments
//           (EMBEDDED_SEED_VERSION 7.01 → 7.10 re-seed). Declutter: the
//           landing menu's source list line, the presets panel's two
//           read-only paragraphs, the Random/Sequence hint line, the empty
//           user-folder note reworded, the Settings theme/highlight/Native
//           paragraphs, the link dialog's privacy footnote and the footer's
//           engine-ok dot are all gone — compile errors still toast, so the
//           always-green badge was noise
//   7.9 — footer credit + What's New polish. The footer's blank middle now
//           carries the maker's signature: "© {year} · Site Created &
//           Deployed by Sum'ting White" (year generated from the clock,
//           hydration-guarded) with a "View my portfolio at zcreations.dev"
//           link that opens zcreations.dev in a new tab — centered in the
//           blank area from xl (mx-auto between the stats and the version
//           stamp), dropping to its own centered row on narrower screens so
//           nothing ever crowds. The What's New dialog got a typographic
//           tidy-up: a hairline divider above every release box
//           (border-zinc-800 — a ramp step, so it matches every base theme
//           through the globals.css remaps), and each change row became an
//           invisible two-column grid — the kind tag top-right justified
//           against the column boundary, the description top-left with word
//           wrap — so all descriptions start on the same pixel column
//   7.8 — share strings 2.0: ~72% shorter than the script (was ~49%). The
//           base-62 idea, cranked to 11,172… 32,164: after the symbol
//           dictionary (which grew ~170 data-mined entries — every function
//           WITH its open paren, every engine variable, the AVS idioms
//           "hue = hue + dt * " and "t = t + dt * ", " * 0.", ") * ",
//           blank-line+section skeletons, "linewidth: " / "blend: additive"
//           headers, ~70 number literals, and the library's common
//           variable names incl. chroma) the whole body is read as ONE BIG
//           NUMBER and rewritten in base 32,164 — one digit per character
//           from the CJK + Hangul blocks, ~15 bits a character vs base-62's
//           5.95 (so "1400" costs ~0.85 of a character). The decoder gets
//           the body's alphabet back from a ~32-character bitmap header
//           instead of ~80 literal symbols. Short scripts where the header
//           wouldn't pay keep the v7.7 symbol form (encoder picks whichever
//           is shorter); ▲ strings from v7.7 still decode; still lossless
//           for ANY text, still copy-safe, still self-checking. Corpus
//           measure: median share string is 27% of the script's length
//           (best 22%), e.g. Bass Bloom 1341 → 326 characters
//   7.7 — script sharing + settings declutter. Script⇢Hash / Hash⇢Script:
//           two buttons in the Script tab turn the editor's script into ONE
//           short shareable Unicode string ("Bass Bloom:[▲…①①①①①①①①]") and
//           paste one back — the script returns exactly as written (lossless
//           for ANY text, compiling NOT required, so WIP scripts can be
//           shared for debugging). The string is built from built-in symbol
//           references (♤ = line return, ♡ = beats, ♠ = beatage, ♦ = space,
//           ♩♪♫♬ = the four sections, one symbol per function/variable, plus
//           a pair-packing layer that folds leftover identifier/number text
//           two chars per CJK code point) — ~50% shorter than the script on
//           real presets. Copy-safe by construction (no raw whitespace or
//           control chars; platform-injected variation selectors / zero-
//           widths stripped on paste) and self-checking: 8 check digits (an
//           FNV-1a digest rendered as ①–⑯) reject strings that were cut off
//           by a character limit or altered in transit, instead of decoding
//           into garbage. Also: the Music Services log in / "log out of all"
//           section in Settings is parked (MUSIC_SERVICES_UI flag) — the
//           built-in house account already powers Stream-a-Link for
//           everyone; the section returns reworked in a later update
//   7.6.1 — header declutter: the Set Beat button is gone from the header
//           (tap-tempo lives in the Beat tab, and the Space shortcut works
//           anywhere — both unchanged). The beat indicator dot stays.
//   7.6 — "What's New!" dialog: a Sparkles button in the header (left of
//           the theme switch) opens the visitor-facing changelog — every
//           release from v4.0 on, newest first, each with one-line Added /
//           Improved / Fixed / Removed notes (src/lib/release-notes.ts,
//           color-coded tags, the running version badged "current",
//           scrollable with the thin scrollbar). A small emerald dot on the
//           button marks updates the visitor hasn't seen yet — per visitor
//           in localStorage, cleared on open (mount-guarded, no hydration
//           mismatch). Standing rule added: version bumps ship with their
//           release note; a dev-mode guard warns when they drift
//   7.5.1 — Link dialog width fix: text no longer escapes the dialog box.
//           Root cause: Radix dialogs lay their children in an implicit CSS
//           grid whose single column sizes to the widest child's min-content;
//           the RECENT LINKS rows carry truncate spans (white-space: nowrap),
//           and Chromium measures a nowrap flex item's full text width for
//           that measurement — so a long saved title (e.g. "Bobby Foxx — This
//           Is Why We Can't Have Nice Things (Official Music Video)") blew
//           the column ~40 px past the 448 px dialog, and EVERY child (title,
//           description, input + Load, rows, footer) laid out beyond the
//           right border. Fix: the shared Dialog/AlertDialog content now pins
//           the column to minmax(0,1fr) — capped at the available width, so
//           no nowrap content can ever stretch a dialog again (covers every
//           dialog app-wide) — the Link dialog widened to max-w-lg for
//           comfier wrapping, and min-w-0 + break-words added on the
//           recents/playlist containers and error text as belt-and-braces
//   7.5 — yt-dlp compatibility: single tracks resolve by DOWNLOAD + CONVERT
//           instead of proxying the extractor's stream URL. The old stream
//           URLs were IP-locked (googlevideo bakes in the resolver's IP),
//           expired within hours, and arrived as webm/opus — a container
//           Safari & co. refuse ("The media resource … was not suitable").
//           The server now runs the operator's pipeline per track:
//             yt-dlp -f bestaudio/best -x --audio-format mp3
//                    --audio-quality 0 -o "<dir>/%(title)s.%(ext)s" URL
//           — audio-only download, universal MP3 at VBR-0 (~245 kbps), the
//           video's real title preserved for the Playing: label. The
//           finished file streams same-origin with full Range support from
//           a per-track workspace dir (30-min sliding TTL + orphan sweeper);
//           /api/audio/stream gained a file-serving mode. Hardening around
//           it: shared failure classifier for both yt-dlp passes (metadata +
//           download), 180 s download budget, 300 MB cap, bot-wall/stale-
//           extractor answers unchanged, ffmpeg-missing degrades to the old
//           proxy path (logged once), queue look-ahead lead 15 s → 60 s so
//           playlist transitions don't stall behind conversions
//   7.4 — Sequence mode: a second mix checkbox next to Random. Ticked, it
//           cycles the scope folder's presets IN ORDER (the tree's exact
//           top-to-bottom order) instead of shuffling — and when it moves
//           past the last preset it wraps back to the first, so the folder
//           loops forever. Random and Sequence are mutually exclusive
//           (ticking either one unticks the other; both share the same
//           delay and folder scope), Random now never loads the same preset
//           twice in a row, and Sequence holds its breath through silence
//           exactly like Random does. The Demo showcase now runs SEQUENCE —
//           the one play-through walks every Zai-Magic preset in order
//           (20 s each) rather than repeating random picks, and when the
//           demo stops, whichever mode it checked is unchecked again
//   7.3 — demo-flow refinements: the Demo Track is a single pass — it plays
//           "Neural Mecha Pulse" once through and stops (a demo, not a radio
//           station). However it ends (natural finish, Stop, or switching to
//           another source) the showcase unwinds: the randomizer the Demo
//           flow force-checked is unchecked again, and the visitor lands
//           back on the "Select an audio source" overlay. Preset-change
//           popups are gone ("Preset loaded" / "Random preset" / "Default
//           preset running") — the footer's SCRIPT: label already echoes
//           every change, so the toasts were pure intrusion; only compile
//           errors still toast. Club-mode randomizer now respects silence:
//           when no music is playing it never re-shuffles the selected
//           preset, even with the checkbox on — it waits for the next track
//   7.2.1 — Supernova (Zai-Magic) preset fix: the particle kill condition
//           (|px|+|py| > 2.4) was physically unreachable — drag caps a
//           particle's total travel at vel/1.6 ≈ 1.0, so nothing ever
//           crossed 1.4, nothing ever died, and since respawning requires a
//           dead particle, the per-beat "budget = n" detonation could never
//           fire after the initial one — the preset exploded once on load,
//           then faded to permanent black. Now every beat force-clears the
//           whole 620-particle field in [beat] (guaranteed full re-detonation
//           on the very same frame), fully-cooled particles die by fade so
//           long beat gaps leave a gentle ember drizzle instead of black,
//           and each blast re-randomizes its geometry (no two explosions
//           alike). Embedded library re-seeded (seed marker 7.01)
//   7.2 — new-visitor showcase flow. Defaults for first-time visitors:
//           the Black + Purple Outline theme with the Blue highlight
//           (previously royal purple + yellow), and Zai-Magic "Bass Bloom"
//           as the startup preset (previously the first Synth-C classic).
//           The idle overlay's Demo Track button now carries an animated
//           reflective shimmer (skewed light band sweeping left→right every
//           3.2 s, reduced-motion safe) to draw the click — and that one
//           click starts the full showcase: the demo track plays while the
//           preset tree selects + expands Zai-Magic, randomize switches on
//           scoped to that folder with a 20-second change interval. Music
//           started with NO preset active (own draft running / selection
//           cleared) auto-loads Bass Bloom. Preset changes — manual load,
//           the random mix, the Demo flow — no longer hard-cut: the engine
//           snapshots the outgoing frame and blur-dissolves it into the new
//           preset over 700 ms (progressive blur + easeOutCubic fade + a
//           slight scale-up so the softening edges never gap; plain
//           crossfade where ctx.filter is unsupported)
//   7.1 — real demo track + a beat detector that survives real music.
//           The Demo button now plays "Neural Mecha Pulse" (the operator's
//           mastered industrial-EDM banger, public/demo-track.mp3, loops
//           gaplessly) instead of the synthetic techno pattern — a real
//           recording is the honest test: deep sub for the bass bands,
//           driving mids, crisp highs, and a kick buried in sustained
//           sub-bass. That last part exposed the 6.x detector as fundamentally
//           broken on mastered music: a LEVEL threshold can never see the
//           kick through the sub (peak-to-mean caps at ~1.2× → sporadic
//           fires, phantom 120-BPM locks from the minInterval floor).
//           v7.1 rewrites detection the way real beat trackers work
//           (aubio/librosa-style): a full-band spectral-flux ONSET envelope
//           → autocorrelation over 300–1000 ms lags with a log-BPM prior →
//           comb-filter phase with grid hysteresis → beats fired on an
//           absolute grid kept glued by a PLL pull. Headlessly validated
//           against the actual track PCM (AnalyserNode chain replicated
//           frame-for-frame): locks the true ~133 BPM (the song drifts
//           130.7→133.1 — the grid TRACKS it) in 1.9 s, 92% beat-gap
//           regularity, confidence 0.99 through the body; techno/hip-hop
//           patterns lock exactly; silence yields zero beats. Known limit:
//           sparse kick-vs-snare backbeats (dnb) may lock half-tempo —
//           stable, and two taps of Set Beat correct it. Visitor-stored
//           beat configs migrate (floorLevel changed units, level → flux).
//           The demo BPM slider is gone (a real track's tempo is detected,
//           not dialed in) — replaced by a track-name chip in the header
//   7.00 — Zai-Magic: ten hand-authored presets in root/embedded/Zai-Magic
//           built around BEAT-SYNCED COLOR — the color wheel turns on the
//           kick, palettes swap per beat / per 4-beat bar, megabuf particles
//           remember the hue of the beat that spawned them + new script
//           tools: hsvr/hsvg/hsvb (HSV→RGB channels), smoothstep and the
//           beatage kick-envelope variable — all documented in the help
//           panel. (Numbered 7.00 rather than 6.10 — a new preset family
//           plus new script-language features is a major release; 6.9.3 was
//           the last patch of the 6.x line.) Beat engine fixes underneath so
//           the Demo track actually
//           locks tempo (was sporadic): demo synth remixed for detection
//           (hot kick owning the 20–100 Hz band, off-beat bassline voiced
//           C3+ with a sidechain pump — chronological envelope events!),
//           and the detector's default threshold 1.4 → 1.2 (the 170 ms FFT
//           window caps a clean kick's peak-to-mean at ~1.5×, so 1.4 fired
//           only sporadically and the BPM never locked)
//   6.9.3 — canonical domain fix: metadataBase/og:url/og:image pointed at
//           openvisualengine.com (a DEAD domain baked in by 6.9.1) while the
//           real site is openvisengine.com — Facebook's "corrupted image"
//           error was its crawler fetching the image from a host that serves
//           nothing; all share URLs now use the correct short domain
//   6.9.2 — share-image fix: og:image re-encoded as BASELINE JPEG (the
//           6.9.1 progressive encoding rendered fine in every browser but
//           Facebook's Sharing Debugger rejected it as "corrupted"), swapped
//           in the title-card artwork (gradient wordmark over three
//           visualizations) and added a ?v=2 cache-bust so crawlers fetch it
//   6.9.1 — social share preview: Open Graph + Twitter Card metadata with
//           a 1200×630 screenshot of the app (public/og-image.jpg) — sharing
//           openvisualengine.com on Facebook/X/WhatsApp/Discord now shows the
//           big image card instead of a bare link
//   6.9 — house account: anonymous visitors play YouTube links through
//         the operator's shared disposable-account cookie (server-side
//         fallback under secrets/, never exposed) — YouTube bot walls stop
//         applying to guests; visitor's own login always wins. Engine fix
//         underneath: Deno runtime shipped in bin/ (YouTube requires a JS
//         runtime for signature/n-challenge solving on authenticated
//         sessions — without it, logged-in extractions return no formats)
//   6.8.2 — login friction cut to ~4 clicks: the exported cookies.txt /
//           Cookie-Editor JSON file can be dragged straight onto the
//           login box (or picked via “Import the exported file…”) — no
//           opening the file, no copy/paste; “Log out” / sign-out
//           revocation note added (the official Google OAuth flow can't
//           power the site: Google's APIs never hand out stream URLs and
//           restricted-scope verification would reject an audio player)
//   6.8.1 — cookie login made foolproof: the login dialog recognizes raw
//           Cookie headers, cookies.txt exports AND Cookie-Editor JSON,
//           validates the paste LIVE through one shared parser (a single
//           cookie's value — like a bare LOGIN_INFO string — gets an honest
//           "this will not log you in" warning), and the how-to steps lead
//           with the one-click extension export for Chrome AND Firefox
//   6.8 — self-healing audio engine: when YouTube changes their mechanics
//         the server detects the stale extractor, updates yt-dlp in the
//         background (verified GitHub release download, atomic swap) and the
//         player retries seamlessly behind an "Updating in Background"
//         notice; bot walls answer "Google login required…" with an Open
//         Settings action, and unfixable failures get the honest
//         "A back-end problem has occurred. Please try again later."
//   6.7 — lazy playlist queue: a playlist link becomes a queue of URLs that
//         streams ONE song at a time (each track is resolved by yt-dlp only
//         right before it plays — next-track look-ahead at ≤15 s to go),
//         queue bar with skip/jump/replay + server-side caps (max 2 parallel
//         extractions); music-service framework: Spotify + Apple Music are
//         registered providers whose playback ships in a later update
//         (logins already save, links answer with an honest notice)
//   6.6 — music service logins (Settings tab): YouTube / YouTube Music,
//         SoundCloud, Spotify, Apple Music cookie login, encrypted on the
//         visitor's computer; Link button gains playlist picking + uses the
//         login to bypass bot walls
//   6.5 — Settings tab (replaces the parked Native tab): theme picker with
//         base chrome (Royal Purple / Matte Black / Black + Purple Outline /
//         Light) × selectable highlight color (Purple, Yellow, Blue, Green,
//         Red, Orange), all per-visitor; simple OVE logo as the site favicon
//   6.4 — beat detection suspends when no music is playing/loaded (no ghost
//         beats after Stop, BPM resets) + dark theme restyle: royal purple
//         chrome with light-yellow highlights
//   6.3 — light/dark theme tick switch in the header (white theme via .light
//         palette remap; per-visitor, persisted by next-themes)
//   6.2 — security hardening: read-only embedded library (server refuses all
//         writes) + per-visitor "user created" presets stored in the browser
//   6.1 — preset library quality pass: every embedded stand-in is now a UNIQUE
//         generated visual (16 families × seeded parameters), approx badge
//   6.0 — renamed to "Open Visualization Engine" + footer version stamp
//   5.0 — folder-tree Presets page (Task 9–11 state, restored in Task 12)
//   4.0 — link audio source (yt-dlp resolve + stream proxy)

export const APP_NAME = 'Open Visualization Engine'
export const APP_SHORT = 'OVE'
export const APP_VERSION = '7.11'