[feat](trx-rs): add CCI/ACI bars to WFM panel with RDS mitigation

Estimate Co-Channel Interference (CCI) from pilot tone quadrature
leakage and coherence degradation.  Estimate Adjacent Channel
Interference (ACI) from CMA equalizer tap deviation from identity.
Both metrics (0-100 scale) are surfaced through RigFilterState and
displayed as colour-coded bars in the WFM control panel.

The RDS decoder quality parameter is now adaptively penalised when
CCI/ACI levels are elevated, reducing block-error rate under
interference conditions.

https://claude.ai/code/session_016EKzep42RCvE4GxvvRaCwu
Signed-off-by: Claude <noreply@anthropic.com>

src/trx-core/src/rig/state.rs

@@ -338,6 +338,12 @@ pub struct RigFilterState {
     pub wfm_stereo_detected: bool,
     #[serde(default = "default_wfm_denoise_level")]
     pub wfm_denoise: WfmDenoiseLevel,
+    /// Co-Channel Interference level (0–100 scale).
+    #[serde(default)]
+    pub wfm_cci: u8,
+    /// Adjacent Channel Interference level (0–100 scale).
+    #[serde(default)]
+    pub wfm_aci: u8,
     /// SAM stereo width (0.0 = mono, 1.0 = full stereo).
     #[serde(default = "default_sam_stereo_width")]
     pub sam_stereo_width: f32,