feat!: genesis-pinned operator set, server identity with an encrypted control link, key-less join codes; release key continuity

Join codes need no passkey touch and carry only public values (genesis
fingerprint, owner credentials, installer hashes). Nodes pin the genesis and
owners at enrollment and only follow passkey-signed operator set versions.
The panel's server key is listed in the set; pinned nodes require its
signature and run the control link under AES-256-GCM. Password sessions carry
no capabilities. The updater adopts a next_key from a signed manifest.

Bump version to 0.2.0. [CI SKIP]

backend/src/MoShiro.Backend.Api/Common/Mappers.cs

@@ -154,9 +154,9 @@ public static class Mappers
         new(t.Id.Value, t.Scope, t.AgentId?.Value, t.BaseTaskId?.Value, t.Kind, t.Target, t.Params, t.Schedule, t.Enabled, Time(t.UpdatedAtMs));
 
     public static JoinTokenDto ToDto(JoinTokenInfo t) =>
-        new(t.Id, t.Note, t.Labels, t.AutoApprove, t.MaxUses, t.Uses, Time(t.ExpiresAtMs), Time(t.RevokedAtMs), Time(t.CreatedAtMs), JoinTokenService.RoleOf(t.Kind), t.CreatedBy, t.Grant is not null);
+        new(t.Id, t.Note, t.Labels, t.AutoApprove, t.MaxUses, t.Uses, Time(t.ExpiresAtMs), Time(t.RevokedAtMs), Time(t.CreatedAtMs), JoinTokenService.RoleOf(t.Kind), t.CreatedBy);
 
-    public static TrustStateDto ToDto(TrustState s) => new(s.Initialized, s.Genesis, s.Version, s.InSync, s.Proposal is null ? null : new TrustProposalDto(s.Proposal.Statement, s.Proposal.Version, s.Proposal.Challenge));
+    public static TrustStateDto ToDto(TrustState s, string installUrl = "", string installSh = "", string installPs1 = "", bool? matches = null) => new(s.Initialized, s.Genesis, s.Version, s.InSync, s.Proposal is null ? null : new TrustProposalDto(s.Proposal.Statement, s.Proposal.Version, s.Proposal.Challenge), installUrl, s.Operators ?? [], installSh, installPs1, matches, s.ServerKey, s.ServerKeyListed);
 
     public static ElevationDto ToDto(ElevationWindow w) => new(Elevation.IdOf(w.Class), Time(w.ExpiresAtMs));