conductor(track): intent_dsl_survey v1.2 — add Cluster 8 (Metadesk) + Cluster 9 (Verse)

Survey now covers 10 prior-art clusters (was 8). New clusters per
user direction (Option A in the v1.2 cluster-fit discussion):

NEW: research/cluster_8_metadesk.md (research sub-report):
- Metadesk (Ryan Fleury + Allen Webster, Dion Systems, 2020-2021)
- 5 distinctive design properties: uniform 'lego-brick' AST, tags
  as dispatch keys, multiple interchangeable delimiters, comment
  + source-location preservation, first-class C interop with
  copy-paste distribution
- 2 citable anchor quotes with source URLs
- Synthesis: maps to Tier 3 (read/edit/discover) and Tier 4
  (audit/fuzzy) verbs

NEW: research/cluster_9_verse.md (research sub-report):
- Verse (Simon Peyton Jones + Tim Sweeney, Epic Games, 2021-)
- 5 distinctive design properties: transactional semantics with
  speculative execution, failure as first-class control flow, effect
  tracking in function signature, new Verse Calculus (ICFP 2023
  Distinguished Paper), everything-is-an-expression + live variables
- 3 citable anchor quotes
- Synthesis: maps to Tier 4 (try/recover/sandbox/audit) verbs;
  two-layer failure model maps to Cluster 7's Result convention

UPDATED: report_v1.2.md (1343 lines, +42 from v1.2 base):
- Inserted Cluster 8 (Metadesk) and Cluster 9 (Verse) sections
  between Cluster 7 and the section 2/3 divider
- Updated §2 intro to say '10 clusters' (was '8')
- Updated glossary 'clusters' entry to list all 10
- Updated v1.2 changelog note (4) to document the cluster additions

UPDATED: tracks.md:
- Track #23 status line now lists all 10 clusters
- Goal line updated to say '10 clusters' (was '8')

UPDATED: state.toml deliverable_summary:
- Added v1.2_changes[4] for the cluster additions
- Added cluster_count = 10
- research_sub_reports now lists 7 cluster files (0-9)

The spec/plan/review files still say '8 clusters' — left as
historical context (spec is approved with 8; expanding to 10 is
an editorial decision the user has now made; future revisions of
spec/plan should reflect 10).

conductor/tracks/intent_dsl_survey_20260612/state.toml

@@ -65,14 +65,15 @@ git_note_attached = true
 tracks_md_registered = true
 
 [deliverable_summary]
-primary = "conductor/tracks/intent_dsl_survey_20260612/report_v1.2.md (1301 lines, final)"
+primary = "conductor/tracks/intent_dsl_survey_20260612/report_v1.2.md (1343 lines, final)"
 v1_1 = "conductor/tracks/intent_dsl_survey_20260612/report_v1.1.md (1301 lines, secondary review pass)"
 v1_0 = "conductor/tracks/intent_dsl_survey_20260612/report.md (418 lines, original)"
 review = "conductor/tracks/intent_dsl_survey_20260612/reportreview.md (154 lines, secondary review pass)"
-research_sub_reports = "conductor/tracks/intent_dsl_survey_20260612/research/ (5 cluster files, ~1300 lines combined)"
-final_commit = "213e4994"
+research_sub_reports = "conductor/tracks/intent_dsl_survey_20260612/research/ (7 cluster files, 0-9; ~2300 lines combined)"
+final_commit = "213e4994 (v1.2 base) + cluster-8-9-additions commit"
 v1_1_commit = "c7e92896"
 spec_commit = "b389f1be"
 plan_commit = "5ef68a00"
-v1_2_changes = ["rename arena to tape (46 occurrences)", "mixed postfix/infix notation for math (per user heuristic)", "nagent attribution corrected (Jody Bruchon -> Mike Acton)"]
+v1_2_changes = ["rename arena to tape (46 occurrences)", "mixed postfix/infix notation for math (per user heuristic)", "nagent attribution corrected (Jody Bruchon -> Mike Acton)", "added Cluster 8 (Metadesk) and Cluster 9 (Verse) — survey now 10 clusters"]
+cluster_count = 10
 time_sensitive_goal = "Completed 2026-06-12 before nagent v2.2 hard boundary."