refactor(client): drive RdpClient configuration from the PropertySet

[Benoît Cortier (CBenoit)]

Make ironrdp-client configurable almost entirely from a .rdp PropertySet so that a single ConfigBuilder::from_property_set overlay can build a working client, enabling fully reproducible sessions from .rdp files. Viewer-only settings remain in PartialConfig with special treatment.

• cfg: add ironrdp_ vendor properties for compressionlevel, colordepth, dvcplugin, tls, serverpointer and autologon.
• client: read compression level, color depth, DVC plugins and kerberos from the PropertySet; default bulk compression to K64 unless disabled or specified otherwise.
• client: move anti-idle "fake events" into active_session; consumed via fake_events_interval, dropping it from the viewer GUI
• viewer: upsert CLI flags into the PropertySet; prune PartialConfig to CLI-only fields

[Copilot]

Pull request overview

This PR refactors IronRDP’s client/viewer configuration flow to be driven primarily by an .rdp PropertySet, enabling more reproducible sessions from .rdp files and centralizing property parsing in ironrdp-client’s ConfigBuilder.

Changes:

• Move most viewer CLI configuration into .rdp PropertySet keys (including new ironrdp_ vendor extensions) and build Config via ConfigBuilder::from_property_set.
• Make ironrdp-client::Config more opaque (read-only accessors) and extend ConfigBuilder to track missing required fields and overlay .rdp properties.
• Move anti-idle “fake events” from viewer GUI code into the client active session loop.

Reviewed changes

Copilot reviewed 10 out of 11 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
crates/ironrdp-viewer/src/main.rs	Adjust viewer startup to use Config accessors and remove GUI fake-events handling.
crates/ironrdp-viewer/src/config.rs	Upsert CLI flags into the PropertySet and build the client config via ConfigBuilder::from_property_set + prompts for missing fields.
crates/ironrdp-viewer/src/app.rs	Remove GUI-side fake mouse move timer/state.
crates/ironrdp-testsuite-extra/tests/config_rdp.rs	Update tests to use new Config accessors (transport(), connector(), channels(), etc.).
crates/ironrdp-session/src/x224/mod.rs	Add context comment explaining compression default rationale until slow-path decompression is wired.
crates/ironrdp-pdu/src/rdp/capability_sets/bitmap_codecs/mod.rs	Add API-shape FIXME notes around codec capability helpers.
crates/ironrdp-client/src/rdp.rs	Pass fake-events interval into active session and implement anti-idle injection in the session loop.
crates/ironrdp-client/src/config.rs	Refactor Config to be opaque and redesign ConfigBuilder around PropertySet overlays + missing-field tracking.
crates/ironrdp-client/Cargo.toml	Add dependencies needed to parse .rdp properties in ironrdp-client.
crates/ironrdp-cfg/src/lib.rs	Add PropertySetExt getters for new ironrdp_ vendor properties.
Cargo.lock	Update lockfile for new crate dependencies.

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