cli: add name, image and relay server address flags (#6944)

* cli: add --relay-address-server option for chat relay

New CLI flag --relay-address-server SERVER selects the SMP server used
for the chat relay address link created at startup. Only valid together
with --relay; errors out otherwise.

Threads Maybe SMPServerWithAuth through APICreateMyAddress to the new
agent createConnection parameter.

* cli: add --user-display-name option

Selects or creates the active user non-interactively:
- no active user: create one with the given display name
- active user with matching localDisplayName: continue
- active user with different name: exit with error

Mutually exclusive with --create-bot-display-name.

* cli: add --user-image-file option

Sets the active user's profile image from a .png/.jpg/.jpeg file at
startup. Reads file, base64-encodes as data URL, and updates the user
profile directly in the DB - no notification is sent to existing
contacts. Skips the update if the stored image already matches.

Requires --user-display-name.

* cli: address PR review comments

- rename APICreateMyAddress field srv_ to server_
- extract repeated `loop` and putStrLn from createActiveUser via
  prompt where-clause
- fuse u_ inspection: validate active user display name in the same
  case that creates the user when missing

* cli: enforce profile image size limit in --user-image-file

Reject the file if the encoded data URL exceeds 12500 bytes - matches
the cap mobile and desktop UIs pass to resizeImageToStrSize for profile
images. Without this, oversized images would be silently set on the
user profile.

* core: validate profile image size in chat commands

Enforced in CreateActiveUser, updateProfile_, newGroup, runUpdateGroupProfile
via checkProfileImageSize; max 12500 bytes (matches mobile UIs).

* fix: thread new ChatOpts/CoreChatOpts fields through bot/test constructors

* bots/docs: filter hidden params before type introspection

Hide APICreateMyAddress server_ field so the bot doc generator does not
try to introspect SMPServerWithAuth (an unregistered type).

* core: validate full encoded profile size

Add checkProfileSize / checkGroupProfileSize that encode the full
ChatMessage and check against maxEncodedInfoLength, so a long
displayName/bio combined with a near-max image is also caught at
command time instead of failing later at send time with CEException.

Run alongside the existing checkProfileImageSize (image-only cap of
12500 bytes, matching mobile UIs) in CreateActiveUser, updateProfile_,
newGroup, runUpdateGroupProfile. Update genProfileImg to fit the cap.

* cli: add --headless option for chat relay

Skips interactive prompts (relay address creation, display name) so the
chat relay can run non-interactively as a service. Requires --relay;
creating a new profile also requires --user-display-name.

* test: cover profile image size limit and address server

Adds tests for two new capabilities:
- profile image size validation rejects oversized images
- /_address with a server pins the address to the requested SMP server

* core: update simplexmq (pass optional SMP server to prepareConnectionLink)

* cli: add /set profile image file, fix image flag

Add "/set profile image file <path>" command to set the profile image
from a .png/.jpg/.jpeg file in a running session.

Make --user-image-file create-only: for an existing user it now no-ops
with a note instead of failing with "chat not started" (the update ran
before the chat controller was started).

* core: unify image loading and profile size checks

- loadImageFile (CLI) and readProfileImageFile (command) now share one
  loadImageData; removes the duplicated mime/base64 encoding and its
  decodeUtf8/safeDecodeUtf8 divergence. A missing --user-image-file no
  longer crashes with an uncaught IOException, and empty files are rejected.
- checkProfileSize/checkGroupProfileSize share checkInfoSize.
- --relay-address-server/--headless requires-relay checks use
  errorWithoutStackTrace, matching the adjacent validation (no callstack dump).

* bots/docs: document UpdateProfileImageFromFile as a CLI command

src/Simplex/Chat/Controller.hs

@@ -90,7 +90,7 @@ import Simplex.Messaging.Crypto.Ratchet (PQEncryption)
 import Simplex.Messaging.Encoding.String
 import Simplex.Messaging.Notifications.Protocol (DeviceToken (..), NtfTknStatus)
 import Simplex.Messaging.Parsers (defaultJSON, dropPrefix, enumJSON, parseAll, parseString, sumTypeJSON)
-import Simplex.Messaging.Protocol (AProtoServerWithAuth, AProtocolType (..), MsgId, NMsgMeta (..), NtfServer, ProtocolType (..), QueueId, SMPMsgMeta (..), SubscriptionMode (..), XFTPServer)
+import Simplex.Messaging.Protocol (AProtoServerWithAuth, AProtocolType (..), MsgId, NMsgMeta (..), NtfServer, ProtocolType (..), QueueId, SMPMsgMeta (..), SMPServerWithAuth, SubscriptionMode (..), XFTPServer)
 import Simplex.Messaging.TMap (TMap)
 import Simplex.Messaging.Transport (TLS, TransportPeer (..), simplexMQVersion)
 import Simplex.Messaging.Transport.Client (SocksProxyWithAuth, TransportHost)
@@ -546,7 +546,7 @@ data ChatCommand
   | ClearContact ContactName
   | APIListContacts {userId :: UserId}
   | ListContacts
-  | APICreateMyAddress {userId :: UserId}
+  | APICreateMyAddress {userId :: UserId, server_ :: Maybe SMPServerWithAuth}
   | CreateMyAddress
   | APIDeleteMyAddress {userId :: UserId}
   | DeleteMyAddress
@@ -625,6 +625,7 @@ data ChatCommand
   | SetBotCommands [ChatBotCommand]
   | UpdateProfile ContactName (Maybe Text) -- UserId (not used in UI)
   | UpdateProfileImage (Maybe ImageData) -- UserId (not used in UI)
+  | UpdateProfileImageFromFile FilePath -- set profile image from a .png/.jpg/.jpeg file
   | AddBadge BadgeCredential -- attach an issued badge credential (testing; credential from `simplex-chat badge sign`)
   | ShowProfileImage
   | SetUserFeature AChatFeature FeatureAllowed -- UserId (not used in UI)