docs: seed CHANGELOG.md (Keep-a-Changelog format) (#19)

Closes Row-2 Phase 3 of the 2026-05-26 estate tech-debt audit chain
for this repo. The 2026-05-26 documentation-debt audit
(hyperpolymath/standards#197) flagged that 180 of 279 estate repos
lacked a CHANGELOG.md (65% gap) — this seed closes that finding here.

The seed:
  - Uses Keep-a-Changelog format with an [Unreleased] section.
  - Buckets the most recent 100 commits by conventional-commit prefix
    (feat/fix/refactor/docs/ci/build) into Added/Fixed/Changed/
    Documentation/CI sections.
  - References standards#206's changelog-reusable.yml + the canonical
    templates/cliff.toml for full-regeneration via git-cliff.

The file is initial — the maintainer can adopt changelog-reusable.yml
in this repo's CI to keep it auto-regenerated, or regenerate manually.

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

Author: hyperpolymath

CHANGELOG.md

@@ -0,0 +1,73 @@
+<!--
+SPDX-License-Identifier: MPL-2.0
+SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell (hyperpolymath)
+-->
+
+# Changelog
+
+All notable changes to `flatracoon` will be documented in this file.
+
+This file is generated from conventional commits by the
+[`changelog-reusable.yml`](https://github.com/hyperpolymath/standards/blob/main/.github/workflows/changelog-reusable.yml)
+workflow (`hyperpolymath/standards#206`). Adopt the workflow in this repo's CI to keep this file in sync automatically — see
+[`templates/cliff.toml`](https://github.com/hyperpolymath/standards/blob/main/templates/cliff.toml)
+for the canonical config.
+
+The format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/);
+this project aims to follow [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+### Added
+
+- feat(crg): add crg-grade and crg-badge justfile recipes
+- feat: add stapeln.toml container definition
+- feat: add UX Justfile with doctor, tour, help-me, assail recipes
+- feat: deploy UX Manifesto infrastructure
+- feat: add CLADE.a2ml — clade taxonomy declaration
+- feat: add mirror.yml workflow for GitLab/Bitbucket mirroring
+- feat: update netstack STATE.scm with real project status
+- feat: initialize all 11 netstack submodules
+- feat: add hesiod-dns-map module manifest for orchestrator discovery\n\nEnables ModuleDiscovery to find hesiod-dns-map via *.manifest.ncl scan.\nManifest declares naming layer, health/metrics endpoints, and kubectl\ndeployment mode for the Hesiod DNS service.\n\nCo-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
+- feat: consolidate flatracoon-netstack and flatracoon-os into flatracoon monorepo
+
+### Fixed
+
+- fix(ci): pin upload-artifact to valid SHA in hypatia-scan.yml (Refs standards#48) (#11)
+- fix(ci): sync hypatia-scan.yml to canonical (kill cd-scanner build drift) (#10)
+- fix(ci): build Hypatia escript from repo root (estate dogfood drift)
+- fix(ci): adopt canonical hypatia-scan.yml (env.HOME/scanner-layout + Comment-step gate) (#9)
+- fix(ci): move secret-scanner Cargo.toml gate from job-level if: to step-level (#8)
+- fix(ci): rsr-antipattern.yml duplicate heredoc (#7)
+- fix: set correct Groove capability type (was: custom)
+- fix(scorecard): enforce granular permissions and add fuzzing placeholder
+- fix: global AGPL-3.0-or-later → PMPL-1.0-or-later replacement
+- fix: SPDX headers (AGPL→PMPL), email, author name
+
+### Changed
+
+- refactor: migrate 6SCM → 6A2 (.scm → .a2ml format)
+
+### Documentation
+
+- docs: record tech-debt audit findings (2026-05-26) (#15)
+- docs: substantive CRG C annotation (EXPLAINME.adoc)
+- docs: Add CRG C test documentation for hesiod-dns-map
+- docs: add EXPLAINME.adoc — prove-it file backing README claims
+- docs: add 0-AI-MANIFEST.a2ml (RSR compliance)
+
+### CI
+
+- ci(secret-scanner): drop duplicate --fail from trufflehog extra_args (#6)
+- ci: fix workflow-linter YAML parse error + self-flag bug
+- ci(antipattern): fix top-level dir matching + benchmarks/lsp/bench filename allowlists (#5)
+- ci(antipattern): TS check reads .claude/CLAUDE.md exemption table (#4)
+- ci(antipattern): broaden TS allowlist (cli/, mod.ts, lsp-server, *vscode*, deno-*) (#3)
+
+## Pre-history
+
+Prior commits to this file's introduction are recorded in git history but not formally classified into Keep-a-Changelog sections. To backfill, run `git cliff -o CHANGELOG.md` locally using the canonical [`cliff.toml`](https://github.com/hyperpolymath/standards/blob/main/templates/cliff.toml) — this is one-shot mechanical work.
+
+---
+
+<!-- This file was seeded by the 2026-05-26 estate tech-debt audit follow-up (Row-2 Phase 3); see [`hyperpolymath/standards/docs/audits/2026-05-26-estate-documentation-debt.md`](https://github.com/hyperpolymath/standards/blob/main/docs/audits/2026-05-26-estate-documentation-debt.md). -->