Ship Theseus 0.3.19 4830da01 (signed add-on update endpoint now live)

Setup    4830da019914019c5d3575420b490a278bc3ba63606680f84c30d58de5ff9500
Portable 1ef76b5b0fae9ac5a201956f6f3da55b1f1ceec8a035cc0d498147a210491b5f

One theseus change since 0.3.18:

7672ce0 - Signed add-on update endpoint activates. The Silent Mode
operator Ed25519 pubkey (generated 2026-09-07,
732b1263a236b0030383a2376597cfa43c3624b3ca2912a46134f8f2a06e6012)
is baked into addon-update-pubkeys.js, so on every boot Theseus polls
each installed add-on's updateURL 30 s in, verifies the signed
updates.json against the pubkey, and stages any newer signed version
under <userData>/addons-updates-staged/ for promotion on the next
launch. Verification, backup, and promotion mechanics unchanged from
0.3.18. The screenshot add-on already advertises
https://addons.silentmode.st/screenshot/updates.json; publishing a
signed entry there is what activates real updates. No entry is
published yet, so this build's boot-time fetch fails silently until
the operator lands the first signed payload via
scripts/sign-addon-update.mjs.

3be152a - Also in this ship: package-lock.json resynced with
package.json. The 0.3.18 ship inadvertently committed WIP dependency
additions (bitcoinjs-lib, bip32, bip39, ecpair,
@bitcoinerlab/secp256k1) via git commit -o's file-scoped semantics
without a matching lock update. Fresh clones now build cleanly with
npm ci. Deps are unused by shipped code at this time but ride along
in node_modules — installer size grew ~400 KB.

Deployed. Verified LIVE 0.3.19.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "theseus-navigator",
-  "version": "0.3.18",
+  "version": "0.3.19",
   "description": "Theseus Navigator — a browser that follows the thread. By Silent Mode, a Deviant project.",
   "author": "Silent Mode",
   "main": "main.js",