v0.25: cleanup of inline Imperial-Cult references in open papers

Replaces inline iconographic references in the open papers with structural
stubs that describe the cosmology's function in mechanic-vocabulary, while
retaining named-mechanism vocabulary as canonical mechanic-level vocabulary
in the open canon.

EXTRACTED (now living only in closed studio-art repo + the stub +
LICENSING.md's legitimate description of what migrated):
- the named cosmological-iconographic object (the Imperial Wheel)
- source-tradition framing (Bhavachakra; Yama; Yama's seat; capsule-as-Naraka;
  Imperial Yoke; six realms; three poisons)
- doctrinal-split iconography (the orthodox vs heretical wheel split with its
  specific iconographic differentiators)
- aesthetic-vocabulary triad (Boullée + Jantar Mantar + Gita)

RETAINED in open canon as mechanic-level vocabulary:
- the deferred-moksha doctrine (named-mechanism; the binding-lie)
- the unified-clasp framing (imperial-register vs romantic-register)
- the caste-tier-as-mod-status gradient (deva/asura/manusya/tiryak/preta/naraka)
- the no-haven discipline
- the mind-capsule (replacing the iconographic capsule-as-Naraka phrasing)
- the Imperial Cult as Hivemind's ideological apparatus
- "samsara"/"moksha" used metaphorically as cyclic-existence vocabulary

Files edited:
- architecture-index.md: tree-comment + quick-reference table-row + two
  key-moves bullets (Imperial Cult cosmology authored; doctrinal-split
  discovery arc); footer v0.19 -> v0.20.
- README.md: directory-table row for imperial-cult/; footer v0.7 -> v0.8.
- identity-and-personhood/vocations.md: section-heading + diurnal-grammar
  passage in the diurnal-rhythm section.
- identity-and-personhood/bodies.md: lead-paragraph "Imperial Yoke" ->
  "imperial-register clasp" + four cross-reference table-row anchors stripped
  to file-level (acceptable per plan coherence-check; the stub's anchors
  no longer resolve at section-level anyway).
- LICENSING.md: §Migration status pending -> completed; closing paragraph
  updated to reflect that the substrate/content split is now both
  architectural AND inline-coherent.

Files deleted:
- MIGRATION_CLEANUP_PLAN.md (ephemeral scaffold authored at v0.24.5;
  deleted per its own instructions on completion).

Verified via plan §Verification commands: zero remaining iconographic
references in any open paper outside LICENSING.md (which legitimately
describes what migrated) and the stub at imperial-cult/cosmology.md.

Closes the migration cycle initiated in v0.22 (licensing-marker), v0.24
(cosmology.md -> stub), and the inaugural commit of
studio.nimmerworld.eachpath.local (canonical home). The substrate/content
split is now fully physical AND fully reflected in the open papers'
inline-vocabulary.

README.md

@@ -84,7 +84,7 @@ The architecture is organized as **vertical-by-domain directories**. Each domain
 | [`scale-and-transport/`](./scale-and-transport/architecture.md) | Compute allocation, horizontal scale (UID-routing, sharded GMs, pgnats + republish/replay) |
 | [`schemas/findings.md`](./schemas/findings.md) | Engineering schema-sketches — draft DDL for ~20 tables (zones, NPCs, shifts, emergent_signals, district_reports, decision_log, mind_pool, cells, rail_segments, interiors, mods, trait_colors, proximity_candidates, district_cheat_ops, imperial_policies, overseer_reports, overseer_deployments, imperial_to_gm_formulations, imperial_budget_ledger, imperial_net_transactions, memorialist_true_ledger). Will get reviewed and progressively split per-domain as implementation begins. |
 | [`style/`](./style/) | Style index + sub-guides (trait-palette canonical, more sub-guides growing as visual decisions land) |
-| [`imperial-cult/`](./imperial-cult/cosmology.md) | **Designer-authored canonical content** — the regime's pre-authored religion. The Imperial Wheel (re-engineered Bhavachakra with Hivemind at hub, the **Imperial Yoke** at Yama's seat); six realms as mod-status gradient; capsule-as-Naraka (carried, not visited); the deferred-moksha doctrine ("your children will be free" as binding-lie); orthodox vs. heretical iconography; Boullée + Jantar Mantar + Gita aesthetic substrate. **Total-yoke discipline:** no biological exception, no defector-zone, no outside; resistance entirely interior to the captured world. First content-track dir; future siblings hold liturgy, caste-preacher behavior, festival cycles, sermon fragments. |
+| [`imperial-cult/`](./imperial-cult/cosmology.md) | **Designer-authored canonical content** — the regime's pre-authored religion (canonical home in closed studio-art repo: [`git.eachpath.com/nimmerverse/studio.nimmerworld.eachpath.local`](https://git.eachpath.com/nimmerverse/studio.nimmerworld.eachpath.local); this open repo retains a stub). Mechanic-level cosmological-function retained in open canon: caste-tier-as-mod-status gradient (deva/asura/manusya/tiryak/preta/naraka encoding *condition of capture*); the mind-capsule carried inside every modded skull (hell as condition, not place); the deferred-moksha doctrine (*"your children will be free"* as binding-lie); the Imperial Cult as the Hivemind's ideological apparatus. **Total-yoke discipline:** no biological exception, no defector-zone, no outside; resistance entirely interior to the captured world. First content-track dir; future siblings hold liturgy, caste-preacher behavior, festival cycles, sermon fragments. |
 
 Each domain directory will grow over time as code arrives — gameserver code, Godot client integrations, schemas, findings, and tests will land alongside the architectural spec for that domain.
 
@@ -104,4 +104,4 @@ Each domain directory will grow over time as code arrives — gameserver code, G
 
 ---
 
-**Version:** 0.7 | **Created:** 2026-04-23 | **Updated:** 2026-04-27
+**Version:** 0.8 | **Created:** 2026-04-23 | **Updated:** 2026-04-27