Fix expect_context panics inside spawn_local async blocks

In Leptos 0.7, the reactive owner/context is not propagated into
spawn_local closures. Moved expect_context::<RelayConnection>() and
use_auth() calls before spawn_local in setup.rs, settings.rs, and
section_requests.rs to prevent runtime panics.

Co-Authored-By: claude-flow <ruv@ruv.net>

Author: claude

community-forum-rs/crates/forum-client/src/admin/section_requests.rs

@@ -286,6 +286,7 @@ fn approve_request(req: SectionRequest, requests: RwSignal<Vec<SectionRequest>>)
     let cohort = req.cohort.clone();
     let pk = req.requester.clone();
 
+    let relay = expect_context::<RelayConnection>();
     spawn_local(async move {
         // Add cohort to user's whitelist entry
         match admin.add_to_whitelist(&pk, &[cohort.clone()], &privkey).await {
@@ -298,8 +299,7 @@ fn approve_request(req: SectionRequest, requests: RwSignal<Vec<SectionRequest>>)
                 );
 
                 // Publish kind-9000 (add user to group) as confirmation
-                let relay = expect_context::<RelayConnection>();
-                if let Some(my_pk) = use_auth().pubkey().get_untracked() {
+                if let Some(my_pk) = auth.pubkey().get_untracked() {
                     let now = (js_sys::Date::now() / 1000.0) as u64;
                     let unsigned = nostr_core::UnsignedEvent {
                         pubkey: my_pk,
@@ -311,7 +311,6 @@ fn approve_request(req: SectionRequest, requests: RwSignal<Vec<SectionRequest>>)
                         ],
                         content: "Approved section access request".to_string(),
                     };
-                    let auth = use_auth();
                     wasm_bindgen_futures::spawn_local(async move {
                         if let Ok(signed) = auth.sign_event_async(unsigned).await {
                             relay.publish(&signed);

community-forum-rs/crates/forum-client/src/pages/settings.rs

@@ -206,10 +206,10 @@ pub fn SettingsPage() -> impl IntoView {
         let toasts_ok = toasts_for_profile.clone();
         let toasts_pub = toasts_for_profile.clone();
         let toasts_err = toasts_for_profile.clone();
+        let relay = expect_context::<RelayConnection>();
         wasm_bindgen_futures::spawn_local(async move {
             match auth.sign_event_async(unsigned).await {
                 Ok(signed) => {
-                    let relay = expect_context::<RelayConnection>();
                     let saving_sig = profile_saving;
                     let auth_for_ack = auth;
                     let name_for_ack = name.clone();

community-forum-rs/crates/forum-client/src/pages/setup.rs

@@ -120,10 +120,12 @@ pub fn SetupPage() -> impl IntoView {
         };
 
         let trimmed_for_ack = trimmed.clone();
+        // Capture relay before spawn_local — reactive context is not
+        // propagated into async tasks in Leptos 0.7.
+        let relay = expect_context::<RelayConnection>();
         wasm_bindgen_futures::spawn_local(async move {
             match auth.sign_event_async(unsigned).await {
                 Ok(signed) => {
-                    let relay = expect_context::<RelayConnection>();
                     relay.publish(&signed);
 
                     auth.set_profile(Some(trimmed_for_ack), None);