community: the soulseek link proof, one message to yourself links the account and one question links anyone who answers

src/lib/community.svelte.js

@@ -59,6 +59,13 @@ export const community = $state({
     interests: {},
     /** The server's similar-users answer, or null before it was asked. */
     similar: null,
+    /** slsk_link_status: our own verified link and everyone we verified. */
+    links: null,
+    /** username → the last failed ask's reason. */
+    linkErrors: {},
+    /** persona key → ProfileView | {none} | {error} | {pending}: other
+     *  people's signed profiles, read once per session when surfaced. */
+    remoteProfiles: {},
     /** key → true while an action runs (buttons disable on it). */
     busy: {},
     /** The last action's error, shown where it happened. */
@@ -303,7 +310,7 @@ export async function initCommunity() {
             if (p.status === 1 || p.status === 2) noteSeen(p.username);
         });
     }
-    await Promise.all([refreshFreenet(), loadContacts()]);
+    await Promise.all([refreshFreenet(), loadContacts(), refreshLinks()]);
     await refreshPersona();
 }
 
@@ -337,6 +344,53 @@ export async function loadSimilar(force = false) {
     }
 }
 
+// ---- the Soulseek link proof ----------------------------------------------------
+export async function refreshLinks() {
+    try {
+        community.links = await api.slskLinkStatus();
+    } catch {
+        // stays null: the UI treats it as "not linked"
+    }
+}
+export const linkSelf = () =>
+    run("linkself", async () => {
+        community.links = await api.slskLinkSelf();
+    });
+export const unlinkSelf = () =>
+    run("linkself", async () => {
+        community.links = await api.slskLinkUnlink();
+    });
+/** Ask one person over Soulseek; success is remembered on the Rust side. */
+export async function checkLink(username) {
+    community.busy["link:" + username] = true;
+    delete community.linkErrors[username];
+    try {
+        const k = await api.slskLinkCheck(username);
+        await refreshLinks();
+        return k;
+    } catch (e) {
+        community.linkErrors[username] = String(e?.message ?? e);
+        return null;
+    } finally {
+        delete community.busy["link:" + username];
+    }
+}
+export const linkFor = (username) => {
+    const n = (username ?? "").trim().toLowerCase();
+    return community.links?.others?.find((l) => l.username_normalized === n) ?? null;
+};
+export async function loadRemoteProfile(key, force = false) {
+    if (!key) return;
+    if (community.remoteProfiles[key] && !force) return;
+    community.remoteProfiles[key] = { pending: true };
+    try {
+        community.remoteProfiles[key] = (await api.profileGet(key)) ?? { none: true };
+    } catch (e) {
+        community.remoteProfiles[key] = { error: String(e?.message ?? e) };
+    }
+}
+
+
 // Dev handle beside `__soulstream` (state.svelte.js): probes reach the store
 // through this, never through a bare import (which would be a second copy).
 if (import.meta.env.DEV) globalThis.__community = community;