chore: estate-wide chore + stale-path sweep (2026-04-17)

Part of the estate-wide 2026-04-17 cleanup pass. Commits chore-safe
content only: docs, workflow YAML, gitignore, a2ml migration drift,
editorconfig, ncl. Dependency manifests (Cargo.toml/.lock, package.json,
mix.exs, etc.) and source files intentionally held back so no broken
intermediate states where a .rs commit splits from its Cargo.toml.

Also includes stale-path fixes for four ecosystem moves:
  hypatia       -> verification-ecosystem/hypatia
  echidna       -> verification-ecosystem/echidna
  ephapax       -> developer-ecosystem/nextgen-languages/ephapax
  panic-attacker -> games-ecosystem/panic-attacker

Staged files: 14
Held back (source / dep-manifests): 29

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

Author: hyperpolymath

.gitignore

@@ -128,3 +128,8 @@ Thumbs.db
 
 # wokelangiser generated i18n locale files (too large for GitHub)
 generated/wokelangiser/i18n/
+target/
+_build/
+deps/
+.elixir_ls/
+.cache/

.machine_readable/6a2/ECOSYSTEM.a2ml

@@ -73,10 +73,10 @@ notes = "Fleet panel wired with 6 bots and safety triangle. BoJ agent-mcp routes
 
 [related-projects.verisimdb]
 relationship = "primary-backend-module"
-nature = """VeriSimDB is PanLL's first database backend. VQL-DT maps to three-panel layout:
+nature = """VeriSimDB is PanLL's first database backend. VCL-DT maps to three-panel layout:
 Panel-L = proof obligations, Panel-N = agentic inference, Panel-W = query results."""
 integration-status = "active"
-notes = "BoJ database-mcp cartridge routes VQL queries when bojRouting=true."
+notes = "BoJ database-mcp cartridge routes VCL queries when bojRouting=true."
 
 [related-projects.quandledb]
 relationship = "future-backend-module"