docs: add checkpoint files for state tracking

Add STATE.scm, ECOSYSTEM.scm, and META.scm for project state management:
- STATE.scm: Current project state, tasks, blockers, milestones
- ECOSYSTEM.scm: Relationships to other projects in ecosystem
- META.scm: Architectural decisions and development practices

These files enable AI assistants and tools to understand project
context and make informed decisions about changes.

Part of RSR (Rhodium Standard Repository) compliance.

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

Author: Test

ECOSYSTEM.scm

@@ -0,0 +1,28 @@
+;; SPDX-License-Identifier: AGPL-3.0-or-later
+;; ECOSYSTEM.scm - Ecosystem relationships for hyperpolymath.github.io
+;; Media-Type: application/vnd.ecosystem+scm
+
+(ecosystem
+  (version "1.0.0")
+  (name "hyperpolymath.github.io")
+  (type "library")  ;; or: application, tool, specification, template
+  (purpose "Hyperpolymath ecosystem component")
+
+  (position-in-ecosystem
+    "Part of the hyperpolymath ecosystem of 500+ repositories "
+    "following Rhodium Standard Repository (RSR) conventions.")
+
+  (related-projects
+    ;; Examples - customize based on actual relationships:
+    ;; (sibling-standard "rsr-template-repo" "Template for new repos")
+    ;; (dependency "hypatia" "Security scanning")
+    ;; (consumer "gitbot-fleet" "Quality enforcement")
+    )
+
+  (what-this-is
+    "A component of the hyperpolymath ecosystem. "
+    "[TODO: Add specific description]")
+
+  (what-this-is-not
+    "This is not a standalone project - it integrates with "
+    "the broader hyperpolymath tooling ecosystem."))

META.scm

@@ -0,0 +1,46 @@
+;; SPDX-License-Identifier: AGPL-3.0-or-later
+;; META.scm - Architectural decisions and project meta-information
+;; Media-Type: application/meta+scheme
+
+(define-meta hyperpolymath.github.io
+  (version "1.0.0")
+
+  (architecture-decisions
+    ;; ADR format: (adr-NNN status date context decision consequences)
+    ((adr-001 accepted "2026-01-30"
+      "Need to establish repository structure and standards"
+      "Adopt RSR (Rhodium Standard Repository) conventions from rsr-template-repo"
+      "Ensures consistency with 500+ repos in hyperpolymath ecosystem. "
+      "Enables automated quality enforcement via gitbot-fleet and Hypatia.")))
+
+  (development-practices
+    (code-style
+      "Follow hyperpolymath language policy: "
+      "Prefer ReScript, Rust, Gleam, Elixir. "
+      "Avoid TypeScript, Go, Python per RSR.")
+    (security
+      "All commits signed. "
+      "Hypatia neurosymbolic scanning enabled. "
+      "OpenSSF Scorecard tracking.")
+    (testing
+      "Comprehensive test coverage required. "
+      "CI/CD runs on all pushes.")
+    (versioning
+      "Semantic versioning (semver). "
+      "Changelog maintained in CHANGELOG.md.")
+    (documentation
+      "README.adoc for overview. "
+      "STATE.scm for current state. "
+      "ECOSYSTEM.scm for relationships.")
+    (branching
+      "Main branch protected. "
+      "Feature branches for new work. "
+      "PRs required for merges."))
+
+  (design-rationale
+    (why-rsr
+      "RSR provides standardized structure across 500+ repos, "
+      "enabling automated tooling and consistent developer experience.")
+    (why-hypatia
+      "Neurosymbolic security scanning combines neural pattern recognition "
+      "with symbolic reasoning for fast, deterministic security checks.")))

STATE.scm

@@ -1,4 +1,4 @@
-;; SPDX-License-Identifier: PMPL-1.0
+;; SPDX-License-Identifier: PMPL-1.0-or-later
 ;; STATE.scm - Project state for hyperpolymath.github.io
 
 (state