refactor(orbit): switch share link to psysonic2- magic string format

Aligns orbit invites with the existing magic-string family (psysonic1- for
server invites, psysonic2- for library shares) by folding orbit into the
psysonic2- payload as a new k:'orbit' variant. The JSON body is
intentionally extendable so future layers (passwords, permissions,
invite expiry) can be added without a format migration.

- SharePayloadV1 split into EntitySharePayloadV1 + OrbitSharePayloadV1
- decodeSharePayloadFromText filters orbit out; orbit has its own decoder
- applySharePastePayload param narrowed to EntitySharePayloadV1
- buildOrbitShareLink / parseOrbitShareLink kept as thin wrappers
- slug parameter dropped (magic string is opaque, so the slug was
  cosmetic-only in the old URL form); slugifyOrbitName removed as dead code
- joinModalLinkPlaceholder updated in all 8 locales

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/components/OrbitStartModal.tsx

@@ -9,7 +9,6 @@ import {
   startOrbitSession,
   buildOrbitShareLink,
   generateSessionId,
-  slugifyOrbitName,
 } from '../utils/orbit';
 import { randomOrbitSessionName } from '../utils/orbitNames';
 import { useAuthStore } from '../store/authStore';
@@ -44,8 +43,8 @@ export default function OrbitStartModal({ onClose }: Props) {
   const onLan      = isLanUrl(serverBase);
 
   const shareLink = useMemo(
-    () => buildOrbitShareLink(serverBase, sid, slugifyOrbitName(name)),
+    () => buildOrbitShareLink(serverBase, sid),
-    [serverBase, sid, name],
+    [serverBase, sid],
   );
 
   const writeLinkToClipboard = async (): Promise<boolean> => {

src/locales/de.ts

@@ -1501,7 +1501,7 @@ export const deTranslation = {
     joinModalTitle: 'Einer Orbit-Session beitreten',
     joinModalSub: 'Füge den Einladungslink ein, den dir der Host geschickt hat.',
     joinModalLinkLabel: 'Einladungslink',
-    joinModalLinkPlaceholder: 'psysonic2://orbit/…',
+    joinModalLinkPlaceholder: 'psysonic2-…',
     joinModalLinkHelper: 'Akzeptiert jeden gültigen Orbit-Link. Der Link muss zu dem Server gehören, auf dem du gerade angemeldet bist.',
     joinModalPasteTooltip: 'Aus Zwischenablage einfügen',
     joinModalSubmit: 'Beitreten',

src/locales/en.ts

@@ -1505,7 +1505,7 @@ export const enTranslation = {
     joinModalTitle: 'Join an Orbit session',
     joinModalSub: 'Paste the invite link your host sent you.',
     joinModalLinkLabel: 'Invite link',
-    joinModalLinkPlaceholder: 'psysonic2://orbit/…',
+    joinModalLinkPlaceholder: 'psysonic2-…',
     joinModalLinkHelper: 'Works with any valid Orbit link. Must point to the server you\'re currently signed into.',
     joinModalPasteTooltip: 'Paste from clipboard',
     joinModalSubmit: 'Join',

src/locales/es.ts

@@ -1488,7 +1488,7 @@ export const esTranslation = {
     joinModalTitle: 'Unirse a una sesión Orbit',
     joinModalSub: 'Pega el enlace de invitación que te envió tu anfitrión.',
     joinModalLinkLabel: 'Enlace de invitación',
-    joinModalLinkPlaceholder: 'psysonic2://orbit/…',
+    joinModalLinkPlaceholder: 'psysonic2-…',
     joinModalLinkHelper: 'Funciona con cualquier enlace Orbit válido. Debe apuntar al servidor al que estás conectado actualmente.',
     joinModalPasteTooltip: 'Pegar desde el portapapeles',
     joinModalSubmit: 'Unirse',

src/locales/fr.ts

@@ -1483,7 +1483,7 @@ export const frTranslation = {
     joinModalTitle: 'Rejoindre une session Orbit',
     joinModalSub: 'Colle le lien d\'invitation que ton hôte t\'a envoyé.',
     joinModalLinkLabel: 'Lien d\'invitation',
-    joinModalLinkPlaceholder: 'psysonic2://orbit/…',
+    joinModalLinkPlaceholder: 'psysonic2-…',
     joinModalLinkHelper: 'Fonctionne avec tout lien Orbit valide. Doit pointer vers le serveur auquel tu es actuellement connecté.',
     joinModalPasteTooltip: 'Coller depuis le presse-papiers',
     joinModalSubmit: 'Rejoindre',

src/locales/nb.ts

@@ -1482,7 +1482,7 @@ export const nbTranslation = {
     joinModalTitle: 'Bli med i en Orbit-økt',
     joinModalSub: 'Lim inn invitasjonslenken verten sendte deg.',
     joinModalLinkLabel: 'Invitasjonslenke',
-    joinModalLinkPlaceholder: 'psysonic2://orbit/…',
+    joinModalLinkPlaceholder: 'psysonic2-…',
     joinModalLinkHelper: 'Fungerer med enhver gyldig Orbit-lenke. Må peke til serveren du er innlogget på.',
     joinModalPasteTooltip: 'Lim inn fra utklippstavlen',
     joinModalSubmit: 'Bli med',

src/locales/nl.ts

@@ -1482,7 +1482,7 @@ export const nlTranslation = {
     joinModalTitle: 'Deelnemen aan een Orbit-sessie',
     joinModalSub: 'Plak de uitnodigingslink die je host je gestuurd heeft.',
     joinModalLinkLabel: 'Uitnodigingslink',
-    joinModalLinkPlaceholder: 'psysonic2://orbit/…',
+    joinModalLinkPlaceholder: 'psysonic2-…',
     joinModalLinkHelper: 'Werkt met elke geldige Orbit-link. Moet verwijzen naar de server waarop je nu bent aangemeld.',
     joinModalPasteTooltip: 'Plakken vanaf klembord',
     joinModalSubmit: 'Deelnemen',

src/locales/ru.ts

@@ -1562,7 +1562,7 @@ export const ruTranslation = {
     joinModalTitle: 'Присоединиться к сессии Orbit',
     joinModalSub: 'Вставь ссылку-приглашение от хоста.',
     joinModalLinkLabel: 'Ссылка-приглашение',
-    joinModalLinkPlaceholder: 'psysonic2://orbit/…',
+    joinModalLinkPlaceholder: 'psysonic2-…',
     joinModalLinkHelper: 'Работает с любой действительной ссылкой Orbit. Должна указывать на сервер, на котором ты сейчас авторизован.',
     joinModalPasteTooltip: 'Вставить из буфера обмена',
     joinModalSubmit: 'Присоединиться',

src/locales/zh.ts

@@ -1475,7 +1475,7 @@ export const zhTranslation = {
     joinModalTitle: '加入 Orbit 会话',
     joinModalSub: '粘贴主持人发给你的邀请链接。',
     joinModalLinkLabel: '邀请链接',
-    joinModalLinkPlaceholder: 'psysonic2://orbit/…',
+    joinModalLinkPlaceholder: 'psysonic2-…',
     joinModalLinkHelper: '适用于任何有效的 Orbit 链接。必须指向你当前登录的服务器。',
     joinModalPasteTooltip: '从剪贴板粘贴',
     joinModalSubmit: '加入',

src/utils/applySharePaste.ts

@@ -3,7 +3,7 @@ import type { TFunction } from 'i18next';
 import { getAlbum, getArtist, getSong, type SubsonicSong } from '../api/subsonic';
 import { useAuthStore } from '../store/authStore';
 import { songToTrack, usePlayerStore } from '../store/playerStore';
-import { findServerIdForShareUrl, type SharePayloadV1 } from './shareLink';
+import { findServerIdForShareUrl, type EntitySharePayloadV1 } from './shareLink';
 import { showToast } from './toast';
 
 const RESOLVE_QUEUE_CHUNK = 12;
@@ -14,7 +14,7 @@ const RESOLVE_QUEUE_CHUNK = 12;
  * the payload was already decoded successfully.
  */
 export async function applySharePastePayload(
-  payload: SharePayloadV1,
+  payload: EntitySharePayloadV1,
   navigate: NavigateFunction,
   t: TFunction,
 ): Promise<void> {

src/utils/orbit.ts

@@ -10,6 +10,7 @@ import {
 import { useAuthStore } from '../store/authStore';
 import { useOrbitStore } from '../store/orbitStore';
 import { usePlayerStore, songToTrack } from '../store/playerStore';
+import { encodeSharePayload, decodeOrbitSharePayloadFromText } from './shareLink';
 import {
   makeInitialOrbitState,
   orbitOutboxPlaylistName,
@@ -44,21 +45,6 @@ export function generateSessionId(): string {
   return Array.from(bytes, b => b.toString(16).padStart(2, '0')).join('');
 }
 
-/**
- * Turn a human session name into a URL-safe slug. Ignores non-ASCII
- * characters so the output is stable across locales and safe in a
- * `psysonic2://` link. Returns an empty string for names that slugify
- * to nothing — callers should fall back to a slug-less link in that case.
- */
-export function slugifyOrbitName(name: string): string {
-  return name
-    .trim()
-    .toLowerCase()
-    .replace(/[^a-z0-9]+/g, '-')
-    .replace(/^-+|-+$/g, '')
-    .slice(0, 40);
-}
-
 // ── Serialisation ───────────────────────────────────────────────────────
 
 /**
@@ -307,8 +293,6 @@ export async function updateOrbitSettings(patch: Partial<import('../api/orbit').
 
 // ── Share link ──────────────────────────────────────────────────────────
 
-export const ORBIT_SHARE_SCHEME = 'psysonic2://orbit/';
-
 export interface OrbitShareLink {
   /** Base URL of the Navidrome server (decoded). */
   serverBase: string;
@@ -317,42 +301,21 @@ export interface OrbitShareLink {
 }
 
 /**
- * Parse a `psysonic2://orbit/<server-b64>/<sid>` link. Returns null on any
+ * Parse an orbit invite from pasted text. Accepts the magic-string format
- * shape mismatch — the caller decides what to do (show error toast etc.).
+ * `psysonic2-<base64url-json>` (same prefix family as library shares and
- * Accepts both the `psysonic2://` prefix and a bare string if the OS-level
+ * server invites). The caller decides what to do on null (show toast, etc.).
- * handler has already stripped the scheme.
  */
-export function parseOrbitShareLink(url: string): OrbitShareLink | null {
+export function parseOrbitShareLink(text: string): OrbitShareLink | null {
-  if (!url) return null;
+  if (!text) return null;
-  const stripped = url.startsWith(ORBIT_SHARE_SCHEME)
+  const payload = decodeOrbitSharePayloadFromText(text);
-    ? url.slice(ORBIT_SHARE_SCHEME.length)
+  if (!payload) return null;
-    : url.startsWith('orbit/') ? url.slice('orbit/'.length) : null;
+  try { new URL(payload.srv); } catch { return null; }
-  if (stripped == null) return null;
+  return { serverBase: payload.srv, sid: payload.sid };
-  const slash = stripped.indexOf('/');
-  if (slash <= 0) return null;
-  const serverB64 = stripped.slice(0, slash);
-  const tail      = stripped.slice(slash + 1).replace(/\/+$/, '');
-  // Tail is either `<sid>` or `<slug>-<sid>` — the SID is always the
-  // terminal 8-hex group. The slug is purely cosmetic for the sender.
-  const m = tail.match(/(?:^|-)([0-9a-f]{8})$/i);
-  if (!m) return null;
-  const sid = m[1].toLowerCase();
-  let serverBase: string;
-  try {
-    serverBase = atob(serverB64);
-  } catch { return null; }
-  try { new URL(serverBase); } catch { return null; }
-  return { serverBase, sid };
 }
 
-/**
+/** Build an orbit invite magic string for a live session. */
- * Build a share link for a live session. When `slug` is provided (and
+export function buildOrbitShareLink(serverBase: string, sid: string): string {
- * non-empty) it is prepended to the SID for a friendlier-looking URL
+  return encodeSharePayload({ srv: serverBase, k: 'orbit', sid });
- * — the parser strips it on the receiving side.
- */
-export function buildOrbitShareLink(serverBase: string, sid: string, slug?: string): string {
-  const tail = slug && slug.length > 0 ? `${slug}-${sid}` : sid;
-  return `${ORBIT_SHARE_SCHEME}${btoa(serverBase)}/${tail}`;
 }
 
 // ── Playlist lookup ─────────────────────────────────────────────────────

src/utils/shareLink.ts

@@ -5,10 +5,17 @@ export const PSYSONIC_SHARE_PREFIX = 'psysonic2-';
 
 export type EntityShareKind = 'track' | 'album' | 'artist';
 
-export type SharePayloadV1 =
+/** Entity / queue shares — what {@link applySharePastePayload} dispatches on. */
+export type EntitySharePayloadV1 =
   | { srv: string; k: EntityShareKind; id: string }
   | { srv: string; k: 'queue'; ids: string[] };
 
+/** Orbit invite — session id + originating server. Decoded separately so that
+ *  entity-share consumers can't accidentally receive an orbit payload. */
+export type OrbitSharePayloadV1 = { srv: string; k: 'orbit'; sid: string };
+
+export type SharePayloadV1 = EntitySharePayloadV1 | OrbitSharePayloadV1;
+
 export function normalizeShareServerUrl(url: string): string {
   const t = url.trim();
   if (!t) return '';
@@ -38,24 +45,38 @@ function isEntityKind(k: unknown): k is EntityShareKind {
 
 export function encodeSharePayload(payload: SharePayloadV1): string {
   const srvNorm = normalizeShareServerUrl(payload.srv);
-  const body =
+  let body: string;
-    payload.k === 'queue'
+  if (payload.k === 'queue') {
-      ? JSON.stringify({
+    body = JSON.stringify({
       v: 1,
       srv: srvNorm,
       k: 'queue',
       ids: payload.ids.map(id => String(id).trim()).filter(Boolean),
-        })
+    });
-      : JSON.stringify({
+  } else if (payload.k === 'orbit') {
+    body = JSON.stringify({
+      v: 1,
+      srv: srvNorm,
+      k: 'orbit',
+      sid: String(payload.sid).trim(),
+    });
+  } else {
+    body = JSON.stringify({
       v: 1,
       srv: srvNorm,
       k: payload.k,
       id: String(payload.id).trim(),
     });
+  }
   return PSYSONIC_SHARE_PREFIX + utf8ToBase64Url(body);
 }
 
-export function decodeSharePayloadFromText(text: string): SharePayloadV1 | null {
+/**
+ * Decode an entity / queue share from pasted text. Returns null for orbit
+ * payloads (use {@link decodeOrbitSharePayloadFromText}) — so entity-share
+ * consumers can't be fed an orbit invite by accident.
+ */
+export function decodeSharePayloadFromText(text: string): EntitySharePayloadV1 | null {
   const idx = text.indexOf(PSYSONIC_SHARE_PREFIX);
   if (idx < 0) return null;
   const after = text.slice(idx + PSYSONIC_SHARE_PREFIX.length);
@@ -67,6 +88,7 @@ export function decodeSharePayloadFromText(text: string): SharePayloadV1 | null
     const srv = typeof raw.srv === 'string' ? normalizeShareServerUrl(raw.srv) : '';
     if (!srv) return null;
     const k = raw.k;
+    if (k === 'orbit') return null;
     if (k === 'queue') {
       const idsRaw = raw.ids;
       if (!Array.isArray(idsRaw) || idsRaw.length === 0) return null;
@@ -87,3 +109,24 @@ export function findServerIdForShareUrl(servers: ServerProfile[], shareSrv: stri
   const hit = servers.find(s => normalizeShareServerUrl(s.url) === norm);
   return hit?.id ?? null;
 }
+
+/** Decode an orbit invite from pasted text. Returns null for entity / queue shares. */
+export function decodeOrbitSharePayloadFromText(text: string): OrbitSharePayloadV1 | null {
+  const idx = text.indexOf(PSYSONIC_SHARE_PREFIX);
+  if (idx < 0) return null;
+  const after = text.slice(idx + PSYSONIC_SHARE_PREFIX.length);
+  const token = after.match(/^([A-Za-z0-9_-]+)/)?.[1];
+  if (!token) return null;
+  try {
+    const raw = JSON.parse(base64UrlToUtf8(token)) as Record<string, unknown>;
+    if (raw.v !== 1) return null;
+    if (raw.k !== 'orbit') return null;
+    const srv = typeof raw.srv === 'string' ? normalizeShareServerUrl(raw.srv) : '';
+    if (!srv) return null;
+    const sid = typeof raw.sid === 'string' ? raw.sid.trim().toLowerCase() : '';
+    if (!/^[0-9a-f]{8}$/.test(sid)) return null;
+    return { srv, k: 'orbit', sid };
+  } catch {
+    return null;
+  }
+}