feat: add error-lang to nextgen-languages tracking

CHANGES:
- Add error-lang to README.adoc satellite repos table
- Add error-lang entry to STATE.scm with accurate 45% completion
- Document 7,468 LOC across ReScript, Idris2, Zig
- Document consolidation completed 2026-02-07

ERROR-LANG STATUS:
- Pedagogical language for systems thinking education
- Computational haptics, type superposition, positional semantics
- Complete: Lexer, Parser, Type system, Analyzer, Stability tracker,
  FiveWhys, Layer navigator, Idris2 ABI
- Missing: Codegen, LSP, Package manager, Debugger, VS Code extension
- Consolidated from error-lang + error-lang-playground

This resolves error-lang "lost development" - was claimed 0% but
actually 45% complete with substantial ReScript compiler implementation.

Related: Phase 5 consolidation task

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: Jonathan D.A. Jewell

.machine_readable/STATE.scm

@@ -247,7 +247,42 @@
         (missing . (lsp debugger vscode-extension documentation idris2-abi-proofs))
         (related-repos . (obli-transpiler-framework obli-fs obli-riscv-dev-kit obli-ssg))
         (fragmentation . "Examples in boinc-boinc/, transpiler separate, 4+ Dockerfiles")
-        (next . ("Consolidate scattered code" "Complete crypto FFI" "Idris2 ABI proofs" "Begin LSP"))))))
+        (next . ("Consolidate scattered code" "Complete crypto FFI" "Idris2 ABI proofs" "Begin LSP"))))
+
+      (error-lang
+       ((name . "Error-Lang")
+        (status . active)
+        (completion . 45)
+        (category . pedagogical)
+        (phase . compiler-complete-tooling-missing)
+        (implementation . "ReScript + Idris2 + Zig")
+        (loc . 7468)
+        (files . 27)
+        (rescript-files . 18)
+        (idris-files . 6)
+        (zig-files . 3)
+        (size . "2.7M")
+        (canonical-repo . "error-lang")
+        (has . (lexer parser type-system analyzer stability-tracker five-whys
+                layer-navigator idris2-abi zig-ffi tutorial-levels examples))
+        (special-features . (computational-haptics type-superposition positional-semantics
+                             intentional-fragility paradox-exploration))
+        (completion-details . ((lexer . 100)
+                               (parser . 100)
+                               (type-system . 100)
+                               (analyzer . 100)
+                               (stability-tracker . 100)
+                               (five-whys . 100)
+                               (layer-navigator . 100)
+                               (idris-abi . 100)
+                               (zig-ffi . 40)
+                               (playground-compiler . 30)))
+        (partial . (zig-ffi playground-compiler))
+        (missing . (codegen lsp package-manager debugger vscode-extension))
+        (related-repos . (error-lang-playground))
+        (fragmentation . "Playground with alternative compiler structure in separate repo")
+        (consolidated . "2026-02-07")
+        (next . ("Complete Zig FFI" "Backend architecture decision" "Begin LSP" "VS Code extension"))))))
 
     (critical-next
      ((1 . "Validate AffineScript end-to-end pipeline (75K LOC needs integration testing)")

README.adoc

@@ -148,6 +148,11 @@ Each language has its own dedicated repository for implementation:
 | Systems programming, Harvard Architecture
 | Active
 
+| Error-Lang
+| link:https://github.com/hyperpolymath/error-lang[error-lang]
+| Pedagogical language for systems thinking
+| Active
+
 |===
 
 == Design Spectrum