Drop Python 3.10 support and fix all flake8 lint violations

- Remove py310 from tox envlist, CI matrix, readthedocs, README badge
- Move lint env to run on 3.11 in gh-actions mapping
- Fix E501 line-too-long in cusum_annotator, energy_detector,
  parallel_signal_separator, threshold_qualifier (split error string)
- Fix E501 in annotate.py: wrap --sample-rate click.option decorators
  to black style (one arg per line with trailing comma)
- Fix C901 in annotate.py: extract _log_separate_start() helper to
  reduce separate() complexity from 17 to 14
- Fix separate() signature wrapping to match black style

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.readthedocs.yaml

@@ -8,7 +8,7 @@ version: 2
 build:
   os: ubuntu-22.04
   tools:
-    python: "3.10"
+    python: "3.11"
   jobs:
     post_create_environment:
       # Install poetry

.riahub/workflows/build-project.yaml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [ '3.10', '3.11', '3.12' ]
+        python-version: [ '3.11', '3.12' ]
 
     name: Build Project
     steps:

.riahub/workflows/tox.yaml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.10', '3.11', '3.12']
+        python-version: ['3.11', '3.12']
 
     name: Test with tox
     steps:

README.md

@@ -26,7 +26,7 @@
   </a>
   <!-- Python Version -->
   <a href="https://www.python.org/downloads">
-    <img src="https://img.shields.io/badge/python-3.10+-blue.svg" alt="Python Version">
+    <img src="https://img.shields.io/badge/python-3.11+-blue.svg" alt="Python Version">
   </a>
 </p>
 

pyproject.toml

@@ -4,7 +4,7 @@ version = "0.1.5"
 description = "An open-source version of the RIA Toolkit, including the fundamental tools to get started developing, testing, and deploying radio intelligence applications"
 license = { text = "AGPL-3.0-only" }
 readme = "README.md"
-requires-python = ">=3.10"
+requires-python = ">=3.11"
 authors = [
     { name = "Qoherent Inc.", email = "info@qoherent.ai" },
 ]
@@ -128,7 +128,7 @@ onnxruntime = {version = ">=1.17,<2.0", python = ">=3.11"}
 
 [tool.black]
 line-length = 119
-target-version = ["py310"]
+target-version = ["py311"]
 exclude = '''
     /(
           \.git

src/ria_toolkit_oss_cli/ria_toolkit_oss/annotate.py

@@ -502,8 +502,10 @@ def clear(input, output, overwrite, force, quiet):
     help="Annotation type",
 )
 @click.option(
-    "--sample-rate", type=float, default=None,
-    help="Sample rate in Hz (overrides metadata; required if not in file)"
+    "--sample-rate",
+    type=float,
+    default=None,
+    help="Sample rate in Hz (overrides metadata; required if not in file)",
 )
 @click.option("--output", "-o", type=click.Path(), help="Output file path")
 @click.option("--overwrite", is_flag=True, help="Overwrite input file (non-SigMF only)")
@@ -617,8 +619,10 @@ def energy(
     help="Annotation type",
 )
 @click.option(
-    "--sample-rate", type=float, default=None,
-    help="Sample rate in Hz (overrides metadata; required if not in file)"
+    "--sample-rate",
+    type=float,
+    default=None,
+    help="Sample rate in Hz (overrides metadata; required if not in file)",
 )
 @click.option("--output", "-o", type=click.Path(), help="Output file path")
 @click.option("--overwrite", is_flag=True, help="Overwrite input file (non-SigMF only)")
@@ -707,8 +711,10 @@ def cusum(input, label, min_duration, window_size, tolerance, annotation_type, s
 )
 @click.option("--channel", type=int, default=0, help="Channel index to annotate (default: 0)")
 @click.option(
-    "--sample-rate", type=float, default=None,
-    help="Sample rate in Hz (overrides metadata; required if not in file)"
+    "--sample-rate",
+    type=float,
+    default=None,
+    help="Sample rate in Hz (overrides metadata; required if not in file)",
 )
 @click.option("--output", "-o", type=click.Path(), help="Output file path")
 @click.option("--overwrite", is_flag=True, help="Overwrite input file (non-SigMF only)")
@@ -780,20 +786,6 @@ def threshold(input, threshold, label, window_size, annotation_type, channel, sa
 # ============================================================================
 
 
-@annotate.command()
-@click.argument("input", type=click.Path(exists=True))
-@click.option("--indices", type=str, help="Comma-separated annotation indices to split (default: all)")
-@click.option("--nfft", type=int, default=65536, help="FFT size for spectral analysis")
-@click.option("--noise-threshold-db", type=float, help="Noise floor threshold in dB (auto-estimated if not specified)")
-@click.option("--min-component-bw", type=float, default=50e3, help="Min component bandwidth in Hz")
-@click.option(
-    "--sample-rate", type=float, default=None,
-    help="Sample rate in Hz (overrides metadata; required if not in file)"
-)
-@click.option("--output", "-o", type=click.Path(), help="Output file path")
-@click.option("--overwrite", is_flag=True, help="Overwrite input file (non-SigMF only)")
-@click.option("--quiet", is_flag=True, help="Quiet mode")
-@click.option("--verbose", is_flag=True, help="Verbose output (show detected components)")
 def _log_separate_start(quiet, recording, indices_list, nfft, noise_threshold_db, min_component_bw):
     if not quiet:
         click.echo("\nSplitting annotations by frequency components...")
@@ -808,8 +800,34 @@ def _log_separate_start(quiet, recording, indices_list, nfft, noise_threshold_db
         click.echo(f"  Min component BW: {format_frequency(min_component_bw)}")
 
 
+@annotate.command()
+@click.argument("input", type=click.Path(exists=True))
+@click.option("--indices", type=str, help="Comma-separated annotation indices to split (default: all)")
+@click.option("--nfft", type=int, default=65536, help="FFT size for spectral analysis")
+@click.option("--noise-threshold-db", type=float, help="Noise floor threshold in dB (auto-estimated if not specified)")
+@click.option("--min-component-bw", type=float, default=50e3, help="Min component bandwidth in Hz")
+@click.option(
+    "--sample-rate",
+    type=float,
+    default=None,
+    help="Sample rate in Hz (overrides metadata; required if not in file)",
+)
+@click.option("--output", "-o", type=click.Path(), help="Output file path")
+@click.option("--overwrite", is_flag=True, help="Overwrite input file (non-SigMF only)")
+@click.option("--quiet", is_flag=True, help="Quiet mode")
+@click.option("--verbose", is_flag=True, help="Verbose output (show detected components)")
 def separate(
-        input, indices, nfft, noise_threshold_db, min_component_bw, sample_rate, output, overwrite, quiet, verbose):
+    input,
+    indices,
+    nfft,
+    noise_threshold_db,
+    min_component_bw,
+    sample_rate,
+    output,
+    overwrite,
+    quiet,
+    verbose,
+):
     """
     Auto-detect parallel frequency-offset signals and split into sub-bands.
 

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 isolated_build = true
-envlist = py310, py311, py312, lint
+envlist = py311, py312, lint
 skipsdist = true
 
 [testenv]
@@ -30,6 +30,5 @@ per-file-ignores = __init__.py:F401
 
 [gh-actions]
 python =
-    3.10: py310, lint
-    3.11: py311
+    3.11: py311, lint
     3.12: py312