Add independent ID key configuration and recovery

docs/setup_own_server.md

@@ -190,6 +190,8 @@ deno run --minimum-dependency-age=0 --allow-env https://raw.githubusercontent.co
 >
 > If `uri_passphrase` is omitted, the generator creates a cryptographically random value and prints it once.
 
+The generator also prints an ID recovery code for its random ID key. Save that code if you may need to regenerate a Setup URI for the same Vault. Pass it back as `id_recovery_code`; otherwise a later run creates a different key. Set `id_mode=legacy` only when connecting to a Vault which uses the previous ID behaviour. See the [setup utility reference](../utils/readme.md#setup-uri-generation).
+
 The generator consumes the exact registry-pinned Commonlib release used by the provisioning utility. It creates a configured CouchDB remote profile, applies the current defaults for a new Vault, and encodes them with Commonlib's Setup URI contract.
 
 You will then get the following output:
@@ -198,6 +200,8 @@ You will then get the following output:
 Generated couchdb Setup URI.
 Your passphrase for the Setup URI is: H7vX...a-random-32-character-value
 This passphrase is never shown again, so store it safely.
+ID recovery code: sls-id-v1:<64 lowercase hexadecimal characters>
+Use id_recovery_code with this value and reuse the same remote settings when generating another Setup URI for the same Vault.
 obsidian://setuplivesync?settings=%5B%22tm2DpsOE74nJAryprZO2M93wF%2Fvg.......4b26ed33230729%22%5D
 ```