refactor: migrate 6SCM → 6A2 (.scm → .a2ml format)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: hyperpolymath

.machine_readable/ECOSYSTEM.a2ml

@@ -1,14 +1,10 @@
-# ASDF Tool Plugins Ecosystem Manifest (A2ML)
-@ecosystem { version: "0.1.0", last-updated: "2026-03-03" }
+# SPDX-License-Identifier: PMPL-1.0-or-later
+# ECOSYSTEM.a2ml — Ecosystem position
+# Converted from ECOSYSTEM.scm on 2026-03-15
 
-@project:
-name: "asdf-tool-plugins"
-purpose: "Toolchain management and installation"
-role: "infrastructure-tools"
-@end
+[metadata]
+project = "asdf-tool-plugins"
+ecosystem = "hyperpolymath"
 
-@attestation:
-originalBytes: [Attested by Gemini CLI]
-signature: PLACEHOLDER-ED25519-SIGNATURE
-timestamp: 2026-03-03T12:00:00Z
-@end
+[position]
+type = "component"

.machine_readable/ECOSYSTEM.scm

@@ -1,14 +1,9 @@
-# ASDF Tool Plugins Meta Manifest (A2ML)
-@meta { version: "0.1.0", last-updated: "2026-03-03" }
+# SPDX-License-Identifier: PMPL-1.0-or-later
+# META.a2ml — Project meta-information
+# Converted from META.scm on 2026-03-15
 
-@project-info:
-type: "collection"
-languages: ["bash", "sh"]
-license: "PMPL-1.0-or-later"
-@end
-
-@attestation:
-originalBytes: [Attested by Gemini CLI]
-signature: PLACEHOLDER-ED25519-SIGNATURE
-timestamp: 2026-03-03T12:00:00Z
-@end
+[metadata]
+project = "asdf-tool-plugins"
+author = "Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>"
+license = "PMPL-1.0-or-later"
+standard = "RSR 2026"

.machine_readable/META.a2ml

@@ -1,16 +1,14 @@
-# ASDF Tool Plugins State Manifest (A2ML)
-@state { version: "0.1.0", last-updated: "2026-03-03", status: "active" }
+# SPDX-License-Identifier: PMPL-1.0-or-later
+# STATE.a2ml — Project state checkpoint
+# Converted from STATE.scm on 2026-03-15
 
-@project-context:
-name: "asdf-tool-plugins"
-tagline: "Comprehensive collection of asdf version manager plugins"
-repo: "github.com/hyperpolymath/asdf-tool-plugins"
-completion-percentage: 70
-phase: "active-maintenance"
-@end
+[metadata]
+project = "asdf-tool-plugins"
+version = "0.1.0"
+last-updated = "2026-03-15"
+status = "active"
 
-@attestation:
-originalBytes: [Attested by Gemini CLI]
-signature: PLACEHOLDER-ED25519-SIGNATURE
-timestamp: 2026-03-03T12:00:00Z
-@end
+[project-context]
+name = "asdf-tool-plugins"
+completion-percentage = 0
+phase = "In development"