v2.1.0 — Front-door restructure: front-load three core themes

Front-door restructure. README, llms.txt, and llms-full.txt are reorganized
so the three core themes — (1) human cognitive-resource scarcity as the
central constraint, (2) intent alignment over individual correctness, and
(3) the cycle changing the human as much as the agent — appear in priority
order before the six-phase mechanism. Tagline preserved per ADR-0010. See
ADR-0012 for the
positioning rationale.

Why v2.1.0 and not v2.0.1

The reading order of the front-door documents changes meaningfully — what
appears first determines what AI search engines and human readers learn
about AKC. v2.0.x readers encountered mechanism-first prose; v2.1.0 readers
encounter the constraint and the alignment goal first. This is additive
(no ADRs amended, no design principles changed, no schemas or reference
implementation touched), so no major bump is warranted, but the front
door's signature changes enough that it deserves a minor bump.

Changed

• README.md "What is AKC?" is rewritten in four paragraphs that lead
  with cognitive-resource scarcity, then intent alignment, then the cycle
  changing the human, then the six phases as the means.
• README.md section order — old "Why a cycle?" and "Whose cognitive
  budget?" sections are merged into a single new H2 "Why AKC" placed
  between "What is AKC?" and "What's in this repo". Three H3 subsections
  appear in theme order: The bottleneck has moved, Aligned with intent,
  not just correct, The cycle changes the human too.
• README.md "Relationship to Harness Engineering" — the
  intent-alignment paragraph is shortened to a positioning contrast and
  links back to "Why AKC → Aligned with intent".
• llms.txt blockquote is reordered so cognitive-resource scarcity
  leads, then intent alignment (newly written paragraph), then the cycle
  changing the human, then the six-phase mechanism.
• llms-full.txt opening definition is rewritten so its grammatical
  subject is the scarcity constraint, with the six-phase loop appearing
  in the same sentence as the means rather than the headline. Q&A is
  reordered: "What is AKC's central constraint?" promoted from Q9 to Q2;
  new Q3 added — "How does AKC frame intent alignment?".
• Five language versions of README.md (ja, es, pt-BR, zh-CN, zh-TW)
  synced to the new English structure.
• README "What's in this repo" section trimmed. The 50-line
  repository tree is moved to a dedicated docs/CODEMAPS/ directory
  (matching the AAP convention: INDEX.md + architecture.md) and
  replaced in the README with a brief summary paragraph and a link.
  The Why AKC → cycle → install reading flow is no longer interrupted
  by the file-structure block.

Added

• docs/adr/0012-front-load-three-core-themes.md — new ADR
  recording the front-door reorder decision and the verifiable
  commitments for the three themes appearing in priority order in
  README.md, llms.txt, and llms-full.txt.
• docs/CODEMAPS/ — codemaps directory matching the AAP
  convention. INDEX.md is the navigator; architecture.md carries
  the full tree, document-role routing table, structural diagrams
  (three themes / six phases / three memory layers / four code-LLM
  layering patterns), invariants, citation-dependency graph,
  six-language translation convention, sibling-repo map, and
  file-count snapshot. Linked from every language version of the
  README and from llms.txt.
• Glossary entries in docs/glossary.md: intent alignment,
  bottleneck, cognitive economy, cognitive resource, scarce
  resource, co-develop, attention and judgment — all with five
  language renderings to keep translations in sync.
• GitHub repo About — description rewritten to surface theme #1
  and theme #2 alongside the preserved tagline; topics pruned of v1.x /
  v2.0.0-extraction residue (self-improvement, self-improving-agent,
  prompt-injection, security-by-absence) and extended with five
  theme-aligned topics (agent-alignment, human-in-the-loop,
  cognitive-economy, human-ai-collaboration, signal-first).

Unchanged

• Tagline. "A knowledge cycle for AI agents — one that grows with
  the people who shape it" remains, per ADR-0010's preservation
  decision and ADR-0012's reaffirmation.
• Six phases. Research → Extract → Curate → Promote → Measure →
  Maintain are unchanged in number, name, and order.
• Design principles. All eight remain in effect with the same
  numbering. DP #3 (Non-destructive) and DP #8 (Cognitive economy) are
  referenced inline from "Why AKC" but not amended.
• ADRs in effect. ADR-0002 through ADR-0011 remain in effect as
  written. ADR-0012 is additive.
• Reference implementation. No code changes to
  examples/minimal_harness/ or to schemas/.
• Cycle skills. The six external skill repositories
  (search-first, learn-eval, skill-stocktake, rules-distill,
  skill-comply, context-sync) are unchanged.