revert(policy): Kotlin is goodbye — remove JVM-interop carve-out (#417) (#419)

Kotlin is not exempted. Removes the
bindings/kotlin/bindings/groovy/clients/jetbrains carve-out from #417.
FFI/interop must be Idris2-ABI -> Zig FFI (C last resort); the
proven/proven-servers JVM bindings are an architecture violation to
re-do as Zig FFI.

Author: hyperpolymath

.github/workflows/governance-reusable.yml

@@ -309,29 +309,16 @@ jobs:
           # delegating wrapper (typically <10 LoC) that JNIs into Rust/Zig
           # immediately.
           #
-          # Kotlin/JVM INTEROP carve-out 2026-06-24 (parallel to the TS
-          # `bindings/typescript/` / `bindings/deno/` / `clients/vscode/`
-          # interop carve-outs): Kotlin/Groovy is banned for MOBILE app code
-          # (→ Tauri/Dioxus), but is PERMITTED as consumer-facing JVM interop
-          # — directories where we author bindings that expose an estate
-          # library to JVM consumers, or an IDE-host plugin whose plugin API
-          # is Kotlin-native. Tauri/Dioxus cannot replace a consumer binding
-          # or an editor-host plugin. Three path classes are exempt:
-          #   * **/bindings/kotlin/**  — Kotlin bindings exposing a library to
-          #     JVM consumers (exemplars: proven-servers, proven).
-          #   * **/bindings/groovy/**  — Groovy bindings, same rationale
-          #     (exemplar: proven).
-          #   * **/clients/jetbrains/** — JetBrains IDE plugin; the IntelliJ
-          #     Platform plugin API is Kotlin-native (exemplar:
-          #     universal-language-server-plugin).
-          # Unblock condition: never (consumer binding / editor-host plugin).
-          # `.groovy` is included in the ls-files set ONLY so the carve-out is
-          # explicit and future Groovy bindings outside these dirs are caught.
+          # Kotlin/Groovy: NO JVM-interop exemption (reverted 2026-06-24).
+          # Kotlin is goodbye. There is NO carve-out for hand-written JVM
+          # bindings: FFI/interop to other ecosystems MUST be authored as
+          # Idris2-ABI → Zig FFI/API (Idris2 → C only as an absolute last
+          # resort if Zig genuinely cannot reach the boundary), never as
+          # Kotlin/Java/Groovy `bindings/*`. Mobile uses Tauri/Dioxus. The
+          # only remaining Java carve-out is the minimal Android platform
+          # shim above. `.groovy` is detected so it is banned everywhere.
           JAVA_FILES=$(git ls-files '*.java' '*.kt' '*.kts' '*.groovy' \
-            | grep -vE '(^|/)android/.*/src/.*\.java$' \
-            | grep -vE '(^|/)bindings/kotlin/' \
-            | grep -vE '(^|/)bindings/groovy/' \
-            | grep -vE '(^|/)clients/jetbrains/' || true)
+            | grep -vE '(^|/)android/.*/src/.*\.java$' || true)
           SWIFT_FILES=$(git ls-files '*.swift' || true)
           DART_FILES=$(git ls-files '*.dart' 'pubspec.yaml' || true)
           # V-lang detected by manifest (v.mod / vpkg.json); the .v extension
@@ -344,7 +331,7 @@ jobs:
           enforce "Go files" "use Rust/WASM instead" "$GO_FILES"
           enforce "Python files" "Python is fully banned — use AffineScript/Rust/SPARK/Julia (SaltStack carveout removed 2026-01-03)" "$PY_FILES"
           enforce "Makefiles" "use Mustfile/justfile instead" "$MAKE_FILES"
-          enforce "Java/Kotlin/Groovy files" "use Rust/Tauri/Dioxus instead (consumer JVM interop is exempt under bindings/kotlin, bindings/groovy, clients/jetbrains)" "$JAVA_FILES"
+          enforce "Java/Kotlin/Groovy files" "Kotlin is goodbye — apps use Tauri/Dioxus; FFI/interop must be Idris2-ABI -> Zig FFI (or Idris2 -> C as a last resort), NOT hand-written JVM bindings" "$JAVA_FILES"
           enforce "Swift files" "use Tauri/Dioxus instead" "$SWIFT_FILES"
           enforce "Flutter/Dart files" "use Tauri/Dioxus instead (Google lock-in)" "$DART_FILES"
           enforce "V-lang manifests (v.mod / vpkg.json)" "V-lang is banned since 2026-04-10 — migrate to Zig" "$VMOD_FILES"