feat(0.7.0): Player als Actor-Entity, Puppet syncs (Phase A.6)

Refactor: Player gesplittet in zwei Handles. state.actor (composition-
Entity) ist canonical position-owner. state.player (puppet handle)
bleibt für Animation + Render zuständig und syncs each frame via
puppet.move_to(state.player, actor.position(state.actor)).

vagrant_player-Template ist UNTAGGED — render.draw_entities sieht ihn
nicht, da puppet.render(state.player) das Sprite-Rendering schon macht.
Tag-Konflikt vermieden.

Movement-Refactor in M.update:
- CI_DRIVE-Branch: actor.move(state.actor, dx*speed*dt, 0)
- Normal-Movement: actor.move(state.actor, mx*speed*dt, my*speed*dt)
- Sync-Punkt nach beiden Branches: puppet.move_to(state.player,
  actor.position(state.actor))
- interaction.update + camera.set_target lesen actor.position

Sprint-Logic unverändert (eigene WALK_SPEED constants; movement_speed
auf actor ist informational/120).

Bumps: 0.6.0 → 0.7.0; +actor v0.1.0.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

manifest.module

@@ -1,6 +1,6 @@
 {
     "id": "vagrant-skeleton",
-    "version": "0.6.0",
+    "version": "0.7.0",
     "kind": "module",
     "api": "^0.1",
     "ci_frames": 60,
@@ -16,6 +16,7 @@
         {"id": "lib-core.camera",                 "version": "0.3.0"},
         {"id": "lib-core.render",                 "version": "0.2.0"},
         {"id": "lib-core.composition",            "version": "0.1.0"},
+        {"id": "lib-core.actor",                  "version": "0.1.0"},
         {"id": "lib-core.maps","version":"0.5.7"},
         {"id": "lib-core.puppet",                 "version": "0.5.0"},
         {"id": "lib-core.interaction",            "version": "0.1.0"},