v3 : vote par la chaîne, corrections de la relecture de 74f96be (interface)

- rien n'est parti (nœud muet avant la signature, refus, fenêtre fermée avant) :
  la page lâche le bulletin ; signé, ou montré en code Ğecko, il est gardé et
  le serveur le confirme sans la page ; le refus de la chaîne se dit (« chain ») ;
- le reçu : téléchargeable depuis la fenêtre de vote, et la page « Tes
  bulletins » (/bulletins) qui garde l'historique et vérifie un reçu dans le
  navigateur, sans le serveur (lib/receipt.ts, mêmes vecteurs que le moteur) ;
- le panier ne dit plus « Tes votes comptent dès l'envoi » quand le vote est fermé ;
- @noble/hashes déclaré (utilisé par e2e/chain-mock.mjs et le reçu) ;
- chaîne simulée : finalité, pages, filtres, nœud qui tombe ; contrôles C32, C33.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

web/e2e/helpers.ts

@@ -9,6 +9,7 @@ export const VOTE_ACCOUNT = 'g1L5EYvvSBaYuQCPW78bHxYcvHfmWAqHYe3Gsrp9SV4kWZaEM';
 export const ALICE = { address: 'g1Pn1geRZnHcVdWdKkoYwQrAARDTXK1D7H3zuXj7GNayT1thu', name: 'Alice' };
 export const BOB = { address: 'g1NCrQaFReZcbUW8pKsazfWFCKNSdrTomnDraUMybJc4DFF5g', name: 'Bob' };
 export const CHARLIE = { address: 'g1NFWUkPTyZWE77YUrfBKfAhV9W81qmgdD17v1NGhb1EjYFqi', name: 'Charlie' };
+export const EVE = { address: 'g1QBoGEqZuxL77pF4rMa25f1cH6HAxwgBq66zZu76JPqsaVgj', name: 'Eve' };
 
 export async function signIn(page: Page, name: string, admin = false) {
   const r = await page.request.post('/api/auth/dev', {
@@ -28,12 +29,19 @@ export async function person(browser: Browser, name: string, admin = false): Pro
 /**
  * A fake wallet extension, as duniter-connect offers itself to pages
  * (`window.injectedWeb3`): it lists `accounts` and signs whatever it is given,
- * recording it in `window.__ldSigned`; `window.__ldRefuse = true` makes it refuse.
+ * recording it in `window.__ldSigned`; `window.__ldRefuse = true` makes it refuse;
+ * `window.__ldHold = true` makes it wait, as a person who has not answered yet,
+ * until `window.__ldAnswer(true | false)` (sign, or refuse).
  * It signs nothing real: the page, in test mode, sends to the simulated node.
  */
 export async function wallet(page: Page, accounts: { address: string; name: string }[]) {
   await page.addInitScript((list) => {
-    const w = window as unknown as Record<string, unknown> & { __ldSigned: unknown[]; __ldRefuse?: boolean };
+    const w = window as unknown as Record<string, unknown> & {
+      __ldSigned: unknown[];
+      __ldRefuse?: boolean;
+      __ldHold?: boolean;
+      __ldAnswer?: (yes: boolean) => void;
+    };
     w.__ldSigned = [];
     w.injectedWeb3 = {
       'duniter-connect': {
@@ -42,6 +50,10 @@ export async function wallet(page: Page, accounts: { address: string; name: stri
           accounts: { get: async () => list, subscribe: () => () => undefined },
           signer: {
             signPayload: async (payload: Record<string, unknown>) => {
+              if (w.__ldHold) {
+                const yes = await new Promise<boolean>((resolve) => (w.__ldAnswer = resolve));
+                if (!yes) throw new Error('Cancelled');
+              }
               if (w.__ldRefuse) throw new Error('Cancelled');
               w.__ldSigned.push(payload);
               return { id: w.__ldSigned.length, signature: `0x${'01'.repeat(64)}` };
@@ -79,6 +91,7 @@ export async function chain(page: Page, docPath = DOC) {
   return {
     doc: d as { doc: { id: string }; units: { code: string; inForce: { id: string } | null; proposals: { id: string }[] }[] },
     node,
-    control: async (what: 'hide' | 'show' | 'release' | 'state' | 'silent') => (await page.request.post(`${base}/control/${what}`)).json(),
+    control: async (what: 'hide' | 'show' | 'release' | 'state' | 'silent' | 'node?down=1' | 'node?down=0') =>
+      (await page.request.post(`${base}/control/${what}`)).json(),
   };
 }