[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>

src/trx-reporting/Cargo.toml

@@ -0,0 +1,14 @@
+# SPDX-FileCopyrightText: 2026 Stanislaw Grams <stanislawgrams@gmail.com>
+#
+# SPDX-License-Identifier: BSD-2-Clause
+
+[package]
+name = "trx-reporting"
+version.workspace = true
+edition = "2021"
+
+[dependencies]
+tokio = { workspace = true, features = ["full"] }
+tracing = { workspace = true }
+serde = { workspace = true, features = ["derive"] }
+trx-core = { path = "../trx-core" }