standards: add canonical lust contractile (Lustfile.a2ml + lust.ncl)

The lust/ directory previously held an `Intentfile.a2ml` whose body was
Burble-specific (128 lines of voice-platform probes targeting
server/lib/burble/**) — not a generic template. That content belonged
in the Burble repo, not in standards master.

This commit:
- Removes lust/Intentfile.a2ml (the Burble-specific content was moved
  to burble/.machine_readable/contractiles/lust/Lustfile.a2ml in a
  companion change on the repos-monorepo side).
- Adds lust/Lustfile.a2ml — generic aspirational template with three
  horizons (near / mid / far), distinct from intend/ (commitment).
- Adds lust/lust.ncl — paired runner matching the shape of the other
  six contractile runners (must, intend, adjust, trust, dust, bust).

Semantics clarified (per .machine_readable/contractiles/README.adoc
and session 2026-04-17 discussion):
  intend — "we WILL do this; track progress"       (commitment axis)
  lust   — "we WISH this were true; revisit later" (aspiration axis)

The 7 contractile verbs are now all consistent-shape:
  must / intend / adjust / trust / dust / bust / lust
plus the parallel `k9/` service-validation layer (not a verb).

Decisions deferred to user:
- intend/Intentfile.a2ml filename (memory rule says Intendfile; current
  file is propagated as Intentfile to many derived repos — rename would
  require a second estate-wide sweep).
- k9/ location (nested under contractiles/ currently; arguably belongs
  one level up at .machine_readable/k9/).

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

Author: hyperpolymath

.machine_readable/contractiles/lust/Intentfile.a2ml

@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: PMPL-1.0-or-later
+# Lustfile (A2ML Canonical) — aspirational/roadmap contractile
+# Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath)
+#
+# Paired runner: lust.ncl
+# Verb:          lust
+# Semantics:     what the project WANTS to become — aspirations, wishlist,
+#                roadmap. NOT a commitment (that's `intend`). NOT a gate
+#                (nothing ever "fails" a Lustfile). This contractile exists
+#                so agents and humans can see the future horizon without
+#                confusing it with declared next-action intent.
+#
+# Difference from `intend`:
+#   intend  — "we WILL do this; track progress"        (commitment axis)
+#   lust    — "we WISH this were true; revisit later"  (aspiration axis)
+#
+# CLI:
+#   contractile lust run      → dump the wishlist
+#   contractile lust horizon  → group by target-horizon (near / mid / far)
+
+@abstract:
+Generic Lustfile template. Replace every [[wishes]] item with a project-
+specific aspiration. Items never block; they exist to make the aspiration
+axis visible.
+@end
+
+## Near-horizon wishes (things you'd start tomorrow if you had time)
+
+[[wishes]]
+id = "example-near-wish"
+description = "Describe one aspirational feature/property the project lusts after"
+horizon = "near"
+why = "Why this would matter; the value of it being true"
+status = "declared"
+notes = "Optional human notes; leave empty or delete"
+
+## Mid-horizon wishes (next one-to-two releases out)
+
+[[wishes]]
+id = "example-mid-wish"
+description = "Aspirational item on the one-to-two release horizon"
+horizon = "mid"
+why = "The impact of reaching it"
+status = "declared"
+
+## Far-horizon wishes (multi-year dreams)
+
+[[wishes]]
+id = "example-far-wish"
+description = "Multi-year dream state"
+horizon = "far"
+why = "Why we still bother pointing at it"
+status = "declared"

.machine_readable/contractiles/lust/Lustfile.a2ml

@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: PMPL-1.0-or-later
+# Lust — aspirational/roadmap runner
+#
+# Pairs with: Lustfile.a2ml (same directory)
+# Verb:       lust
+# Semantics:  wishes / aspirations / horizon roadmap. NEVER gates. Distinct
+#             from `intend` which tracks committed next-actions. `lust` is
+#             where the project's unrealised desires live so humans and
+#             agents can see the horizon without confusing it with
+#             declared intent.
+# CLI:        `contractile lust run`      → print wishlist
+#             `contractile lust horizon`  → group by target-horizon
+#
+# Anything else in this directory is human-only notes/archive; machines ignore.
+
+{
+  pedigree = {
+    schema_version = "1.0.0",
+    contractile_verb = "lust",
+    semantics = "aspirational / wishlist / horizon",
+    security = {
+      leash = 'Kennel,
+      trust_level = "read-only reporting",
+      allow_network = false,
+      allow_filesystem_write = false,
+      allow_subprocess = false,     # pure reporting; no probes run
+    },
+    metadata = {
+      name = "lust-runner",
+      version = "1.0.0",
+      description = "Reports project aspirations grouped by horizon. Non-gating. Distinct from intend (commitment) — lust is wish.",
+      paired_xfile = "Lustfile.a2ml",
+      author = "Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>",
+    },
+  },
+
+  schema = {
+    wishes
+      | Array {
+          id | String,
+          description | String,
+          horizon | [| 'near, 'mid, 'far |] | default = 'mid,
+          why | String | optional,
+          status | [| 'declared, 'in_progress, 'achieved, 'abandoned |] | default = 'declared,
+          notes | String | optional,
+        },
+  },
+
+  run = {
+    on_pass = "continue",
+    on_any_fail = "continue",       # never blocks; it's a report
+    report_format = "a2ml",
+    emit_summary = true,
+    emit_grouped_by_horizon = true,
+  },
+}