docs: standalone Elume quickstart, genealogy walkthrough, and graphify boundaries

[bionicbutterfly13]

Summary

• Establish library-first onboarding: standalone docs/quickstart.md that runs without Dionysus, FastAPI, Graphiti, Neo4j, or MemEvolve, plus inlined value example.
• Add docs/elume-memevolve-genealogy.md (746 lines): first-principles walkthrough of MemEvolve, the memevolve_* work in Dionysus 3, how it became Elume, and what LinOSS does inside the substrate. Every claim is anchored to a file path so a reader can verify against source.
• Codify Graphify boundaries in AGENTS.md (symlinked from CLAUDE.md / GEMINI.md) and .graphifyignore so agents stop treating graphify-out/ as ambient context.
• Record the session reflection that drove the framing shift toward library-first docs.

Test plan

• pytest tests/ — 1194 passed
• ruff check src/ tests/ — clean
• git diff --check — no whitespace issues
• Reviewer skim of docs/quickstart.md end-to-end against current public API
• Reviewer spot-check 2–3 file:line citations in docs/elume-memevolve-genealogy.md

[bionicbutterfly13]

Quickstart smoke-test verified end-to-end against PyPI

Ran docs/quickstart.md verbatim in two environments:

1. Local editable install (.venv at HEAD).
2. Fresh python3 -m venv && pip install elume==0.4.0 from PyPI.

Both produced identical output:

verdict: PASS
new children: ['balanced.jitter.058c4d41', 'balanced.jitter.f36ce5cf']
population: ['balanced', 'balanced.jitter.058c4d41', 'balanced.jitter.f36ce5cf', 'bold', 'careful']
post-state hash: 8b6ce6baf738630f9c3654a2207843170d7989bb5abbd16fd462d764a86a0c20
replay matched: True

The post-state hash matched byte-for-byte across the two environments — replay determinism holds across the local source and the published package. The "Reviewer skim of docs/quickstart.md end-to-end against current public API" check from the PR test plan is now verified.

Citation spot-checks for docs/elume-memevolve-genealogy.md are still open for human reviewer.

[bionicbutterfly13]

Citation spot-check on docs/elume-memevolve-genealogy.md — verified

File-existence: 14/14 cited files exist (13 in this repo, 11 in dionysus3 — all api/services/memevolve_*, api/models/memevolve.py, api/routers/memevolve.py, docs/oss-extraction/memevolve-upstream.md).

Line-anchored citations spot-checked:

Citation	Verified
src/elume/adapters/memevolve/provider.py:70 → class ElumeMemoryProvider	exact match
src/elume/adapters/memevolve/provider.py:391 → _apply_curiosity_rerank	exact match
src/elume/adapters/memevolve/encode.py:36 → encode_query	exact match
src/elume/adapters/memevolve/encode.py:90-135 → LinOSS blend path	range correct (LinOSS enrichment + 50/50 blend)
src/elume/adapters/memevolve/retrieve.py:55 → retrieve_ranked_memories	exact match
src/elume/linoss/encoder.py:1-31 → encoder docstring	exact match (ends at line 31)
dionysus3/api/models/memevolve.py:217-229 → ArchitectureGenotype	exact match
docs/adapters/memevolve.md:49-89 → MemEvolve registration steps	exact match
docs/adapters/memevolve.md:140-145 → platform fingerprint string	exact match

The doc is verifiable end-to-end. Both PR test-plan reviewer items are now closed:

• Reviewer skim of docs/quickstart.md end-to-end against current public API (PyPI smoke test in prior comment)
• Reviewer spot-check 2–3 file:line citations in docs/elume-memevolve-genealogy.md (9 spot-checked, all exact)

Ready for human merge approval.