fix(vat): danstillställningar 25% → 6% from 2026-07-01 in guidance and suggestions (#1491)

* fix(vat): danstillställningar 25% to 6% from 2026-07-01 in guidance and suggestions (#1483)

From 2026-07-01 tillträde till danstillställningar is 6% VAT, aligned with
other cultural events. 6% was already a supported rate; every guidance
surface was silent on the change, so a dance-event customer plausibly got
25% suggested.

- swedish-vat skill: rate table row + a July 2026 change note under rate
  misclassification (cutover date, mixed-venue split vs 25% alcohol), and
  the 2631 account table mentions dance admission
- revenue_reduced_6 descriptor: dans/danstillstallning/dansband/entre
  keywords and updated description, which flows to both the UI suggestions
  and gnubok_suggest_categories via findMatchingTemplates
- atom seed regenerated; the generator now emits a version-downgrade guard
  on the ON CONFLICT so two branches each carrying a full 108-atom seed can
  no longer clobber each other's atom bodies depending on merge order

Closes #1483

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* review(vat): drop overbroad entré keyword, cite SkU25 and the prepayment rule

Two findings from the Swedish compliance review bot:
- bare 'entré' matched generic admission that is not always reduced-rate;
  the dance-specific keywords stay
- the rate claim now cites its primary sources (riksdagen 2025/26:SkU25,
  Skatteverket halvårsskiftet 2026) and records that tickets sold and paid
  before 2026-07-01 keep 25%

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* review(vat): admission-specific keywords only, explicit cutoff wording, seed rebuilt post-merge

- bare 'dans' also matched dance courses and artist fees; keep
  danstillställning/dansband and add danskväll
- rate table states the boundary explicitly: 25% through 30 June 2026
- atom seed regenerated from the tree that now includes #1489, emitted as
  20260810121001

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

---------

Co-authored-by: Jakob Wennberg <311770904+jakobwennberg-oss@users.noreply.github.com>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

scripts/.skill-body-manifest.json

@@ -232,12 +232,12 @@
     "version": 1
   },
   "horizontal/swedish-vat": {
-    "hash": "e0b55b8c5fafa4dd6bb28f71616637470c72f31df2cb7f8894bfbc40f49bf578",
-    "version": 3
+    "hash": "adb1b84256e9a17c8c54741530f529f9d0afa645c1f3ff2c77d13d44053544dc",
+    "version": 4
   },
   "horizontal/swedish-vat/vat-compliance-reference": {
-    "hash": "12cf0d3b485b506dc52ad44a251e1c4507948ad3378cd70210ef972b9f482c87",
-    "version": 1
+    "hash": "4fa3e4b047b15d3630a7cff41b1a96091daff32bcaa13410f2c4b964b57d0771",
+    "version": 2
   },
   "horizontal/swedish-year-end-closing": {
     "hash": "ec90a8ecb3b36379350c7d7ae4e93bb50197d41a38a4c2091538320e59fc83b9",