feat: invite trazability via inviteLog and pub-invite SSB events

tribes_model: generateInvite() stores inviteLog[] entry {code, generatedBy, generatedAt, status}
              joinByInvite() updates inviteLog entry with {usedBy, usedAt, status:'used'}
main_models:  acceptInvite() publishes type:'pub-invite' SSB message after handshake
              records pubHost, pubKey, acceptedAt - first audit trail for pub invites
blockchain_model: adds 'invites' filter showing pub-invite blocks and tribes with inviteLog
blockchain_view:  renders inviteLog table on tribe blocks, renders pub-invite block details
                  adds 'invites' filter button to blockexplorer UI

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

nodejs-project/nodejs-project/src/client/assets/styles/style.css

@@ -4189,3 +4189,25 @@ form {
   border-radius: 4px;
   margin: 8px 0;
 }
+
+/* Invite log blockchain styles */
+.invite-log-block {
+  margin-top: 8px;
+  padding: 6px 8px;
+  border-left: 3px solid #27ae60;
+  background: rgba(39,174,96,0.06);
+  border-radius: 0 4px 4px 0;
+}
+
+.invite-status--pending { color: #e67e22; font-weight: bold; }
+.invite-status--used    { color: #27ae60; font-weight: bold; }
+
+.invite-code-cell {
+  font-family: monospace;
+  font-size: 11px;
+}
+
+.invite-key {
+  font-size: 11px;
+  word-break: break-all;
+}

nodejs-project/nodejs-project/src/models/blockchain_model.js

@@ -206,6 +206,9 @@ module.exports = ({ cooler }) => {
         const cset = new Set(['courtsCase','courtsEvidence','courtsAnswer','courtsVerdict','courtsSettlement','courtsSettlementProposal','courtsSettlementAccepted','courtsNomination','courtsNominationVote']);
         filtered = filtered.filter(b => b && cset.has(b.type));
       }
+      if (filter === 'INVITES' || filter === 'invites') {
+        filtered = filtered.filter(b => b && (b.type === 'pub-invite' || (b.type === 'tribe' && Array.isArray(b.content?.inviteLog) && b.content.inviteLog.length > 0)));
+      }
 
       const s = search || {};
       const authorQ = String(s.author || '').trim();

nodejs-project/nodejs-project/src/models/main_models.js

@@ -722,11 +722,21 @@ models.meta = {
     acceptInvite: async (invite) => {
       const ssb = await cooler.open();
       const code = toLegacyInvite(String(invite || ''));
-      return await new Promise((resolve, reject) => {
+      const result = await new Promise((resolve, reject) => {
         ssb.invite.accept(code, (err, res) => {
           err ? reject(err) : resolve(res);
         });
       });
+      const { host, pubId } = parseRemote(code);
+      await new Promise((resolve) => {
+        ssb.publish({
+          type: 'pub-invite',
+          pubHost: host || null,
+          pubKey: pubId || null,
+          acceptedAt: new Date().toISOString(),
+        }, (err) => resolve());
+      });
+      return result;
     },
     rebuild: async () => {
       const ssb = await cooler.open();

nodejs-project/nodejs-project/src/models/tribes_model.js

@@ -104,7 +104,9 @@ module.exports = ({ cooler }) => {
       }
       const code = crypto.randomBytes(INVITE_CODE_BYTES).toString('hex');
       const invites = Array.isArray(tribe.invites) ? [...tribe.invites, code] : [code];
-      await this.updateTribeInvites(tribeId, invites);
+      const inviteLog = Array.isArray(tribe.inviteLog) ? [...tribe.inviteLog] : [];
+      inviteLog.push({ code, generatedBy: userId, generatedAt: new Date().toISOString(), status: 'pending', usedBy: null, usedAt: null });
+      await this.updateTribeById(tribeId, { invites, inviteLog });
       return code;
     },
 
@@ -138,7 +140,12 @@ module.exports = ({ cooler }) => {
       }
       const members = [...tribe.members, userId];
       const invites = tribe.invites.filter(c => c !== code);
-      await this.updateTribeById(tribe.id, { members, invites });
+      const inviteLog = Array.isArray(tribe.inviteLog) ? tribe.inviteLog.map(entry =>
+        entry.code === code
+          ? { ...entry, status: 'used', usedBy: userId, usedAt: new Date().toISOString() }
+          : entry
+      ) : [];
+      await this.updateTribeById(tribe.id, { members, invites, inviteLog });
       return tribe.id;
     },
 
@@ -202,6 +209,7 @@ module.exports = ({ cooler }) => {
         createdAt: tribe.content.createdAt,
         updatedAt: tribe.content.updatedAt,
         author: tribe.content.author,
+        inviteLog: Array.isArray(tribe.content.inviteLog) ? tribe.content.inviteLog : [],
       };
     },
 
@@ -230,6 +238,7 @@ module.exports = ({ cooler }) => {
           createdAt: c.createdAt,
           updatedAt: c.updatedAt,
           author: c.author,
+          inviteLog: Array.isArray(c.inviteLog) ? c.inviteLog : [],
           _ts: entry._ts
         });
       }

nodejs-project/nodejs-project/src/views/blockchain_view.js

@@ -11,12 +11,13 @@ const FILTER_LABELS = {
   forum: i18n.typeForum, about: i18n.typeAbout, contact: i18n.typeContact, pub: i18n.typePub,
   transfer: i18n.typeTransfer, market: i18n.typeMarket, job: i18n.typeJob, tribe: i18n.typeTribe,
   project: i18n.typeProject, banking: i18n.typeBanking, bankWallet: i18n.typeBankWallet, bankClaim: i18n.typeBankClaim,
-  aiExchange: i18n.typeAiExchange, parliament: i18n.typeParliament, courts: i18n.typeCourts
+  aiExchange: i18n.typeAiExchange, parliament: i18n.typeParliament, courts: i18n.typeCourts,
+  'pub-invite': 'PUB INVITE', invites: 'INVITES'
 };
 
 const BASE_FILTERS = ['recent', 'all', 'mine', 'tombstone'];
 const CAT_BLOCK1  = ['votes', 'event', 'task', 'report', 'parliament', 'courts'];
-const CAT_BLOCK2  = ['pub', 'tribe', 'about', 'contact', 'curriculum', 'vote', 'aiExchange'];
+const CAT_BLOCK2  = ['pub', 'tribe', 'about', 'contact', 'curriculum', 'vote', 'aiExchange', 'invites'];
 const CAT_BLOCK3  = ['banking', 'job', 'market', 'project', 'transfer', 'feed', 'post', 'pixelia'];
 const CAT_BLOCK4  = ['forum', 'bookmark', 'image', 'video', 'audio', 'document'];
 
@@ -97,6 +98,7 @@ const getViewDetailsAction = (type, block) => {
     case 'vote': return `/thread/${encodeURIComponent(block.content.vote.link)}#${encodeURIComponent(block.content.vote.link)}`;
     case 'contact': return `/inhabitants`;
     case 'pub': return `/invites`;
+    case 'pub-invite': return `/invites`;
     case 'market': return `/market/${encodeURIComponent(block.id)}`;
     case 'job': return `/jobs/${encodeURIComponent(block.id)}`;
     case 'project': return `/projects/${encodeURIComponent(block.id)}`;
@@ -131,7 +133,47 @@ const TYPE_COLORS = {
   parliamentTerm:'#8e44ad', parliamentProposal:'#8e44ad', parliamentLaw:'#8e44ad',
   parliamentCandidature:'#8e44ad', parliamentRevocation:'#8e44ad',
   courtsCase:'#c0392b', courtsEvidence:'#c0392b', courtsAnswer:'#c0392b',
-  courtsVerdict:'#c0392b', courtsSettlement:'#c0392b', courtsNomination:'#c0392b'
+  courtsVerdict:'#c0392b', courtsSettlement:'#c0392b', courtsNomination:'#c0392b',
+  'pub-invite': '#27ae60', invites: '#27ae60'
+};
+
+const renderInviteExtra = (block) => {
+  if (block.type === 'pub-invite') {
+    const c = block.content;
+    return div({ class: 'invite-log-block' },
+      table({ class: 'block-info-table' },
+        tr(td({ class: 'card-label' }, 'PUB HOST'), td({ class: 'card-value' }, c.pubHost || '—')),
+        tr(td({ class: 'card-label' }, 'PUB KEY'),  td({ class: 'card-value invite-key' }, c.pubKey ? a({ href: `/author/${encodeURIComponent(c.pubKey)}`, class: 'user-link' }, c.pubKey) : '—')),
+        tr(td({ class: 'card-label' }, 'ACCEPTED'),  td({ class: 'card-value' }, c.acceptedAt ? moment(c.acceptedAt).format('YYYY-MM-DD HH:mm:ss') : '—'))
+      )
+    );
+  }
+  if (block.type === 'tribe' && Array.isArray(block.content?.inviteLog) && block.content.inviteLog.length > 0) {
+    return div({ class: 'invite-log-block' },
+      strong('INVITE LOG:'),
+      table({ class: 'block-info-table' },
+        tr(
+          td({ class: 'card-label' }, 'CODE'),
+          td({ class: 'card-label' }, 'GENERATED BY'),
+          td({ class: 'card-label' }, 'GENERATED AT'),
+          td({ class: 'card-label' }, 'STATUS'),
+          td({ class: 'card-label' }, 'USED BY'),
+          td({ class: 'card-label' }, 'USED AT')
+        ),
+        ...block.content.inviteLog.map(entry =>
+          tr(
+            td({ class: 'card-value invite-code-cell' }, String(entry.code || '').slice(0, 12) + '…'),
+            td({ class: 'card-value' }, entry.generatedBy ? a({ href: `/author/${encodeURIComponent(entry.generatedBy)}`, class: 'user-link' }, String(entry.generatedBy).slice(0, 16) + '…') : '—'),
+            td({ class: 'card-value' }, entry.generatedAt ? moment(entry.generatedAt).format('YYYY-MM-DD HH:mm') : '—'),
+            td({ class: `card-value invite-status invite-status--${entry.status || 'pending'}` }, (entry.status || 'pending').toUpperCase()),
+            td({ class: 'card-value' }, entry.usedBy ? a({ href: `/author/${encodeURIComponent(entry.usedBy)}`, class: 'user-link' }, String(entry.usedBy).slice(0, 16) + '…') : '—'),
+            td({ class: 'card-value' }, entry.usedAt ? moment(entry.usedAt).format('YYYY-MM-DD HH:mm') : '—')
+          )
+        )
+      )
+    );
+  }
+  return null;
 };
 
 const renderBlockDiagram = (blocks, qs) => {
@@ -365,7 +407,8 @@ const renderBlockchainView = (blocks, filter, userId, search = {}) => {
                     tr(td({ class:'card-label' }, i18n.blockchainBlockID),        td({ class:'card-value' }, block.id)),
                     tr(td({ class:'card-label' }, i18n.blockchainBlockType),      td({ class:'card-value' }, (FILTER_LABELS[block.type]||block.type).toUpperCase())),
                     tr(td({ class:'card-label' }, i18n.blockchainBlockAuthor),    td({ class:'card-value' }, a({ href:`/author/${encodeURIComponent(block.author)}`, class:'block-author user-link' }, block.author)))
-                  )
+                  ),
+                  renderInviteExtra(block)
                 )
               )
             )