After switching to a responsive signer (nos2x), two DM-specific bugs surfaced.
1. Clicking a conversation in the list threw
"this.controller.handleDmConversationSelect is not a function"
(ProfileDirectMessageRenderer onSelectConversation). The method exists on
ProfileDirectMessageActions and the controller delegates ~15 sibling Actions
methods — but the handleDmConversationSelect delegation was missing. Add it.
2. Loading a conversation's messages threw "DM decryption helpers are
unavailable" even though the signer decrypts blocks/subscriptions/hashtags
fine. buildDmDecryptContext gated decryptor registration on (a) the dynamic
`capabilities` getter (which probes window.nostr and false-negatives on lazy
injection / nos2x's module shape) and (b) the permission-probe result. The
list services already learned to register by METHOD EXISTENCE and validate at
call time; align the DM path to do the same so a present, working signer
never yields zero decryptors. The permission probe still runs.
Tests: tests/dm-decrypt-context.test.mjs (cheat-resistant — a signer whose
capabilities getter reports false and whose permission probe returns ok:false
must still register nip04+nip44 decryptors). Full unit + dm:unit + dm:integration
suites green. KNOWN_BUGS #0.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
