MosaicHeadersPlugin

Ktor client plugin that stamps every outgoing request with 9 x-mosaic-* headers describing the current device/platform, read live from Platform on each request. Installed exactly once, on the single HttpClient MosaicModules.dataModule builds for MosaicNetworkImpl — since every Mosaic network operation (SendNetworkRequest, UploadFile, all 3 download events, GetScreen/ RefreshScreen, the initial-graph fetch, the cache-version check) goes through that one client, every one of them carries these headers, unconditionally. There is no per-request opt-out and no DSL flag to suppress it — a backend can always rely on these headers being present, on any request a Mosaic client ever sends.

Headers sent, each straight from the matching Platform property:

• x-mosaic-platform-name ← Platform.name

• x-mosaic-device ← Platform.device

• x-mosaic-os-version ← Platform.osVersion

• x-mosaic-extra-info ← Platform.extraInfo, flattened to a single comma-separated key=value list via Map.toString()-style joinToString() — not JSON, not individually parseable back into typed key-value pairs without splitting the string yourself.

• x-mosaic-screen-size ← Platform.screenSize

• x-mosaic-screen-density ← Platform.screenDensity

• x-mosaic-locale ← Platform.locale

• x-mosaic-timezone ← Platform.timezone

• x-mosaic-dark-mode ← Platform.darkMode