ludic.anim: animation sets - the game's src/animset moved in as it stood (records, AnimPlayer, animset_bind / request / param / tick and the accessors); AnimSets is an open @ByKey registry a game fills with def AnimSets from; a test on a rig of hand-made clips

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

packages/ludic.anim/tests/sets.lres

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+# sets.lres - the test's one set: a ground state picking by speed bands, a one-shot that hands back,
+# and a hop the code never asks for, taken when toy_hops says so
+toy {
+  entry: "ground"
+  params: ["speed"]
+  states: [
+    {
+      key: "ground"
+      rate_min: 0.5, rate_max: 2.0, blend: 0.2
+      choices: [
+        { clip: "run", rate_by: "speed", ground: 2.0, need: [{ param: "speed", over: 4.0 }] },
+        { clip: "walk", rate_by: "speed", ground: 4.0, need: [{ param: "speed", over: 0.5 }] },
+        { clip: "idle" }
+      ]
+    },
+    { key: "wave", loop: false, next: "ground", choices: [{ clip: "wave" }] },
+    { key: "hop", choices: [{ clip: "hop" }] }
+  ]
+  transitions: [{ from: "ground", to: "hop", blend: 0.1, when: fn toy_hops }]
+}