[feat](trx-rs): extract trx-reporting crate for uplink tasks

Move aprsfi and pskreporter modules from trx-server into a new
standalone trx-reporting library crate. Config types (AprsFiConfig,
PskReporterConfig) move to trx-reporting and are re-exported from
trx-server::config for backwards compatibility.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Stan Grams <sjg@haxx.space>

Cargo.toml

@@ -15,6 +15,7 @@ members = [
     "src/trx-core",
     "src/trx-protocol",
     "src/trx-app",
+    "src/trx-reporting",
     "src/trx-server",
     "src/trx-server/trx-backend",
     "src/trx-server/trx-backend/trx-backend-ft817",