refine: query list, category keywords, and relevance terms

config.nas.yaml:
- Consolidate 9 → 8 queries: remove automotive imaging radar,
  wideband DOA radar, super resolution DOA; merge FMCW MIMO → MIMO radar;
  add radar waveform, radar super resolution
- Remove Target Modeling and RF Impairment categories
- Expand DOA keywords (Capon, subspace, compressive sensing)
- Update MIMO keywords (DDM, RDMA)
- Tighten Antenna keyword (array antenna only, drop generic antenna)
- Adjust relevance_terms: interference 1→2, add super resolution: 3,
  remove target simulation and phase noise

state/provider_circuit_breaker_state.json:
- Reset Crossref circuit breaker (recovered)
- Update Semantic Scholar open_until and strikes

docs/paper-monitor-todo.md:
- Mark IEEE network access unblocked (2026-08-21)
- Mark query refactoring done
- Mark classify_and_score category/scoring as partially complete

config.nas.yaml

@@ -11,24 +11,20 @@ app:
 search:
   queries:
     - automotive radar
-    - automotive imaging radar
     - 4D radar
-    - FMCW radar MIMO
+    - MIMO radar
     - radar DOA estimation
-    - wideband DOA radar
-    - automotive radar antenna
-    - radar target simulation
     - radar interference
-    - super resolution DOA
+    - radar super resolution
+    - radar waveform
+    - automotive radar antenna
 
   categories:
-    Antenna: [antenna, array, radome, beamforming, radiation pattern, sidelobe]
-    Waveform: [waveform, FMCW, chirp, stepped frequency, frequency step, PMCW, phase coded]
-    DOA: [DOA, direction of arrival, angle estimation, MUSIC, ESPRIT, angle FFT, beamspace, super resolution]
-    MIMO: [MIMO, TDM, BPM, DDMA, virtual array, multiplexing]
-    Target Modeling: [target model, target simulation, extended target, scatterer, scattering center, Swerling, RCS]
+    Antenna: [array antenna, radome, beamforming, radiation pattern, sidelobe]
+    Waveform: [waveform, FMCW, chirp, stepped frequency, OFDM, PMCW, phase coded]
+    DOA: [DOA, angle estimation, super resolution, direction of arrival, MUSIC, ESPRIT, Capon, beamspace, subspace, compressive sensing]
+    MIMO: [MIMO, TDM, BPM, DDM, RDMA, virtual array, multiplexing]    
     Interference: [interference, mutual interference, interference mitigation, coexistence]
-    RF Impairment: [phase noise, nonlinearity, IQ imbalance, leakage, oscillator]
     Imaging Radar: [imaging radar, 4D radar, high resolution radar, point cloud]
 
   relevance_terms:
@@ -39,10 +35,9 @@ search:
     MIMO: 2
     DOA: 2
     direction of arrival: 2
+    super resolution: 3
     antenna: 1
-    target simulation: 2
-    phase noise: 2
-    interference: 1
+    interference: 2
 
 sources:
   ieee:
@@ -51,7 +46,7 @@ sources:
     base_url: https://ieeexploreapi.ieee.org/api/v1/search/articles
 
   semantic_scholar:
-    enabled: false   # Set true after your API key is approved/available.
+    enabled: false   
     api_key_env: SEMANTIC_SCHOLAR_API_KEY
     base_url: https://api.semanticscholar.org/graph/v1/paper/search