feat: add Anvil sub anchor and Crucible resampler

Two new CLAP effects aimed at riddim and dubstep production, plus shared
crates so all four plugins keep one look and reuse DSP.

Anvil 0.1.0 (io.storyboard.sub-anchor):
- Replaces the band below Split with a clean mono sine. Every note gets
  the same peak level and restarts at the same phase, so switch-ups keep
  their weight and kick hits line up.
- Pitch and note starts come from the audio (YIN, 80 ms lookahead
  reported to the host) or from MIDI notes sent to the effect.
- Dynamics, Drive, Octave, Glide, Phase, Gate and Keep; Solo sub monitor,
  note readout, level meters and a low-band oscilloscope.

Crucible 0.1.0 (io.storyboard.resampler):
- Records its input continuously in a lock-free ring with host transport
  markers. Capture takes the newest 1-16 complete bars on the bar grid,
  following tempo changes, or the newest audio when stopped.
- Grid (straight and triplet) or transient slicing, manual cuts, slice
  audition without audio-thread allocation.
- Export writes the loop, trimmed, declicked and normalised slices named
  and tagged with their root note, and an optional 2048-sample wavetable
  for Serum and Vital.

Shared:
- common-ui holds the palette, fonts, knobs and panels taken from Patina;
  Patina renders identically. Rotary knobs at their minimum no longer
  tessellate a zero-length arc into NaN vertices.
- common-dsp holds biquads, a Linkwitz-Riley crossover, YIN, note helpers
  and a float WAV writer with sampler root and Serum frame chunks.
- Catalog, CI matrix, release tags, editor previews and docs cover both
  plugins; a script test keeps the catalog and workflows in step.

scripts/release.py

@@ -73,7 +73,7 @@ def plan(tag, root=ROOT):
     tag = tag.removeprefix("refs/tags/")
     plugin = next((p for p in catalog(root) if tag.startswith(p + "-v")), None)
     if plugin is None:
-        raise ValueError("Use a rivet-v<version> or patina-v<version> tag")
+        raise ValueError("Use a <plugin>-v<version> tag, for example " + ", ".join(p + "-v1.0.0" for p in catalog(root)))
     release_version = tag_version(plugin, tag, root)
     release_notes(plugin, release_version, root)
     return {"plugin": plugin, "version": release_version, "tag": tag,

scripts/tests/test_release.py

@@ -103,6 +103,25 @@ class ReleaseTests(unittest.TestCase):
             with self.assertRaises(ValueError):
                 tag_version(plugin, tag, self.root)
 
+    def test_unknown_tag_names_every_catalogued_plugin(self):
+        with self.assertRaisesRegex(ValueError, "rivet-v1.0.0, patina-v1.0.0"):
+            release.plan("refs/tags/unknown-v1.0.0", self.root)
+
+    def test_repository_catalog_is_complete(self):
+        root = Path(__file__).resolve().parents[2]
+        products = json.loads((root / "plugins/catalog.json").read_text())
+        check = (root / ".gitea/workflows/check.yml").read_text()
+        triggers = (root / ".gitea/workflows/release.yml").read_text()
+        ids = [p["clap_id"] for p in products.values()]
+        self.assertEqual(len(ids), len(set(ids)), "CLAP IDs must be unique")
+        for plugin, product in products.items():
+            self.assertTrue((root / product["manifest"]).is_file(), plugin)
+            self.assertTrue((root / product["documentation"] / "CHANGELOG.md").is_file(), plugin)
+            self.assertIn(f'"{plugin}-v*"', triggers)
+            self.assertIn(f"--plugin {plugin} --target", check)
+            for source in product.get("licenses", {}):
+                self.assertTrue((root / source).is_file(), source)
+
     def test_individual_zip_excludes_other_plugin_and_is_reproducible(self):
         path = self.package("patina")
         first = path.read_bytes()