Implement NIP-43 relay access metadata (#104)

* feat: add NIP-43 relay access metadata support

Add feed and detail rendering for kind 13534 (Relay Members) events,
and enable all NIP-43 kind constants for relay access management.

- Add RelayMembersRenderer with feed and detail views
- Enable kind constants: 13534, 28934, 28935, 28936
- Use Shield icon to represent relay access control
- Extract members from NIP-43's "member" tags (not standard "p" tags)

* feat: add renderers for NIP-43 Add/Remove User events

- Change kind 13534 icon from Shield to Users for consistency
- Add feed and detail renderers for kind 8000 (Add User)
- Add feed and detail renderers for kind 8001 (Remove User)
- Both show the affected pubkey using PubkeyListFull component

* fix: show username in Add/Remove User feed renderers

Display the actual username (via UserName component) in kind 8000/8001
feed views instead of just generic text.

* refactor: simplify NIP-43 renderers to follow codebase patterns

- Use PubkeyListPreview in RelayMembersRenderer feed view (shows actual
  users instead of just count, matching FollowSetRenderer pattern)
- Remove redundant icon props from detail renderers (PubkeyListFull
  has sensible defaults)
- Simplify variable naming and reduce comments
- No functional changes, just cleaner code

---------

Co-authored-by: Claude <noreply@anthropic.com>

src/components/nostr/kinds/RelayMembersRenderer.tsx

@@ -0,0 +1,67 @@
+import { Users } from "lucide-react";
+import { getTagValues } from "@/lib/nostr-utils";
+import {
+  BaseEventProps,
+  BaseEventContainer,
+  ClickableEventTitle,
+} from "./BaseEventRenderer";
+import { PubkeyListPreview, PubkeyListFull } from "../lists";
+import type { NostrEvent } from "@/types/nostr";
+
+/**
+ * Kind 13534 Renderer - Relay Members (Feed View)
+ * NIP-43 relay membership list using "member" tags
+ */
+export function RelayMembersRenderer({ event }: BaseEventProps) {
+  const members = getTagValues(event, "member");
+
+  return (
+    <BaseEventContainer event={event}>
+      <div className="flex flex-col gap-2">
+        <ClickableEventTitle
+          event={event}
+          className="flex items-center gap-1.5 text-sm font-medium"
+        >
+          <Users className="size-4 text-muted-foreground" />
+          <span>Relay Members</span>
+        </ClickableEventTitle>
+
+        {members.length === 0 ? (
+          <div className="text-xs text-muted-foreground italic">
+            Empty membership list
+          </div>
+        ) : (
+          <PubkeyListPreview
+            pubkeys={members}
+            previewLimit={3}
+            label="members"
+          />
+        )}
+      </div>
+    </BaseEventContainer>
+  );
+}
+
+/**
+ * Kind 13534 Detail View - Full relay membership list
+ */
+export function RelayMembersDetailRenderer({ event }: { event: NostrEvent }) {
+  const members = getTagValues(event, "member");
+
+  return (
+    <div className="flex flex-col gap-6 p-4">
+      <div className="flex items-center gap-2">
+        <Users className="size-6 text-muted-foreground" />
+        <span className="text-lg font-semibold">Relay Members</span>
+      </div>
+
+      {members.length > 0 ? (
+        <PubkeyListFull pubkeys={members} label="Members" />
+      ) : (
+        <div className="text-sm text-muted-foreground italic">
+          Empty membership list
+        </div>
+      )}
+    </div>
+  );
+}

src/components/nostr/kinds/RelayUserChangeRenderer.tsx

@@ -0,0 +1,132 @@
+import { UserPlus, UserMinus } from "lucide-react";
+import { getTagValue } from "applesauce-core/helpers";
+import {
+  BaseEventProps,
+  BaseEventContainer,
+  ClickableEventTitle,
+} from "./BaseEventRenderer";
+import { PubkeyListFull } from "../lists";
+import { UserName } from "../UserName";
+import type { NostrEvent } from "@/types/nostr";
+
+/**
+ * Kind 8000 Renderer - Add User (Feed View)
+ * NIP-43 event published when a member is added to a relay
+ */
+export function AddUserRenderer({ event }: BaseEventProps) {
+  const pubkey = getTagValue(event, "p");
+
+  if (!pubkey) {
+    return (
+      <BaseEventContainer event={event}>
+        <div className="text-xs text-muted-foreground italic">
+          Invalid event (missing pubkey)
+        </div>
+      </BaseEventContainer>
+    );
+  }
+
+  return (
+    <BaseEventContainer event={event}>
+      <div className="flex flex-col gap-2">
+        <ClickableEventTitle
+          event={event}
+          className="flex items-center gap-1.5 text-sm font-medium"
+        >
+          <UserPlus className="size-4 text-muted-foreground" />
+          <span>User Added</span>
+        </ClickableEventTitle>
+
+        <div className="text-xs">
+          <UserName pubkey={pubkey} className="text-xs" />
+          <span className="text-muted-foreground"> added to relay</span>
+        </div>
+      </div>
+    </BaseEventContainer>
+  );
+}
+
+/**
+ * Kind 8000 Detail View
+ */
+export function AddUserDetailRenderer({ event }: { event: NostrEvent }) {
+  const pubkey = getTagValue(event, "p");
+
+  return (
+    <div className="flex flex-col gap-6 p-4">
+      <div className="flex items-center gap-2">
+        <UserPlus className="size-6 text-muted-foreground" />
+        <span className="text-lg font-semibold">User Added</span>
+      </div>
+
+      {pubkey ? (
+        <PubkeyListFull pubkeys={[pubkey]} label="Added Member" />
+      ) : (
+        <div className="text-sm text-muted-foreground italic">
+          Invalid event (missing pubkey)
+        </div>
+      )}
+    </div>
+  );
+}
+
+/**
+ * Kind 8001 Renderer - Remove User (Feed View)
+ * NIP-43 event published when a member is removed from a relay
+ */
+export function RemoveUserRenderer({ event }: BaseEventProps) {
+  const pubkey = getTagValue(event, "p");
+
+  if (!pubkey) {
+    return (
+      <BaseEventContainer event={event}>
+        <div className="text-xs text-muted-foreground italic">
+          Invalid event (missing pubkey)
+        </div>
+      </BaseEventContainer>
+    );
+  }
+
+  return (
+    <BaseEventContainer event={event}>
+      <div className="flex flex-col gap-2">
+        <ClickableEventTitle
+          event={event}
+          className="flex items-center gap-1.5 text-sm font-medium"
+        >
+          <UserMinus className="size-4 text-muted-foreground" />
+          <span>User Removed</span>
+        </ClickableEventTitle>
+
+        <div className="text-xs">
+          <UserName pubkey={pubkey} className="text-xs" />
+          <span className="text-muted-foreground"> removed from relay</span>
+        </div>
+      </div>
+    </BaseEventContainer>
+  );
+}
+
+/**
+ * Kind 8001 Detail View
+ */
+export function RemoveUserDetailRenderer({ event }: { event: NostrEvent }) {
+  const pubkey = getTagValue(event, "p");
+
+  return (
+    <div className="flex flex-col gap-6 p-4">
+      <div className="flex items-center gap-2">
+        <UserMinus className="size-6 text-muted-foreground" />
+        <span className="text-lg font-semibold">User Removed</span>
+      </div>
+
+      {pubkey ? (
+        <PubkeyListFull pubkeys={[pubkey]} label="Removed Member" />
+      ) : (
+        <div className="text-sm text-muted-foreground italic">
+          Invalid event (missing pubkey)
+        </div>
+      )}
+    </div>
+  );
+}

src/components/nostr/kinds/index.tsx

@@ -67,6 +67,16 @@ import { ZapstoreAppSetDetailRenderer } from "./ZapstoreAppSetDetailRenderer";
 import { ZapstoreReleaseRenderer } from "./ZapstoreReleaseRenderer";
 import { ZapstoreReleaseDetailRenderer } from "./ZapstoreReleaseDetailRenderer";
 import { GroupMetadataRenderer } from "./GroupMetadataRenderer";
+import {
+  RelayMembersRenderer,
+  RelayMembersDetailRenderer,
+} from "./RelayMembersRenderer";
+import {
+  AddUserRenderer,
+  AddUserDetailRenderer,
+  RemoveUserRenderer,
+  RemoveUserDetailRenderer,
+} from "./RelayUserChangeRenderer";
 // NIP-51 List Renderers
 import { MuteListRenderer, MuteListDetailRenderer } from "./MuteListRenderer";
 import { PinListRenderer, PinListDetailRenderer } from "./PinListRenderer";
@@ -159,6 +169,8 @@ const kindRenderers: Record<number, React.ComponentType<BaseEventProps>> = {
   1621: IssueRenderer, // Issue (NIP-34)
   9735: Kind9735Renderer, // Zap Receipt
   9802: Kind9802Renderer, // Highlight
+  8000: AddUserRenderer, // Add User (NIP-43)
+  8001: RemoveUserRenderer, // Remove User (NIP-43)
   777: SpellRenderer, // Spell (Grimoire)
   10000: MuteListRenderer, // Mute List (NIP-51)
   10001: PinListRenderer, // Pin List (NIP-51)
@@ -178,6 +190,7 @@ const kindRenderers: Record<number, React.ComponentType<BaseEventProps>> = {
   10101: WikiAuthorsRenderer, // Good Wiki Authors (NIP-51)
   10102: WikiRelaysRenderer, // Good Wiki Relays (NIP-51)
   10317: Kind10317Renderer, // User Grasp List (NIP-34)
+  13534: RelayMembersRenderer, // Relay Members (NIP-43)
   30000: FollowSetRenderer, // Follow Sets (NIP-51)
   30002: GenericRelayListRenderer, // Relay Sets (NIP-51)
   30003: BookmarkSetRenderer, // Bookmark Sets (NIP-51)
@@ -255,6 +268,8 @@ const detailRenderers: Record<
   1618: PullRequestDetailRenderer, // Pull Request Detail (NIP-34)
   1621: IssueDetailRenderer, // Issue Detail (NIP-34)
   9802: Kind9802DetailRenderer, // Highlight Detail
+  8000: AddUserDetailRenderer, // Add User Detail (NIP-43)
+  8001: RemoveUserDetailRenderer, // Remove User Detail (NIP-43)
   10000: MuteListDetailRenderer, // Mute List Detail (NIP-51)
   10001: PinListDetailRenderer, // Pin List Detail (NIP-51)
   10002: Kind10002DetailRenderer, // Relay List Detail (NIP-65)
@@ -268,6 +283,7 @@ const detailRenderers: Record<
   10101: WikiAuthorsDetailRenderer, // Good Wiki Authors Detail (NIP-51)
   10102: WikiRelaysDetailRenderer, // Good Wiki Relays Detail (NIP-51)
   10317: Kind10317DetailRenderer, // User Grasp List Detail (NIP-34)
+  13534: RelayMembersDetailRenderer, // Relay Members Detail (NIP-43)
   30000: FollowSetDetailRenderer, // Follow Sets Detail (NIP-51)
   30003: BookmarkSetDetailRenderer, // Bookmark Sets Detail (NIP-51)
   30004: ArticleCurationSetDetailRenderer, // Article Curation Sets Detail (NIP-51)

src/constants/kinds.ts

@@ -887,13 +887,13 @@ export const EVENT_KINDS: Record<number | string, EventKind> = {
     nip: "47",
     icon: Wallet,
   },
-  // 13534: {
-  //   kind: 13534,
-  //   name: "Membership Lists",
-  //   description: "Membership Lists",
-  //   nip: "43",
-  //   icon: Users,
-  // },
+  13534: {
+    kind: 13534,
+    name: "Relay Members",
+    description: "Relay membership list",
+    nip: "43",
+    icon: Users,
+  },
   // 17375: {
   //   kind: 17375,
   //   name: "Cashu Wallet Event",
@@ -950,27 +950,27 @@ export const EVENT_KINDS: Record<number | string, EventKind> = {
     nip: "98",
     icon: Key,
   },
-  // 28934: {
-  //   kind: 28934,
-  //   name: "Join Request",
-  //   description: "Join Request",
-  //   nip: "43",
-  //   icon: UserPlus,
-  // },
-  // 28935: {
-  //   kind: 28935,
-  //   name: "Invite Request",
-  //   description: "Invite Request",
-  //   nip: "43",
-  //   icon: Mail,
-  // },
-  // 28936: {
-  //   kind: 28936,
-  //   name: "Leave Request",
-  //   description: "Leave Request",
-  //   nip: "43",
-  //   icon: UserMinus,
-  // },
+  28934: {
+    kind: 28934,
+    name: "Join Request",
+    description: "Relay join request with invite code",
+    nip: "43",
+    icon: UserPlus,
+  },
+  28935: {
+    kind: 28935,
+    name: "Invite Request",
+    description: "Request invite code from relay",
+    nip: "43",
+    icon: Mail,
+  },
+  28936: {
+    kind: 28936,
+    name: "Leave Request",
+    description: "Request to revoke relay access",
+    nip: "43",
+    icon: UserMinus,
+  },
 
   // Group Control
   9000: {