docs: add the three README images

[DivyamTalwar]

The images docs/images/README.md has specified since the Astra release now exist.

File	Where	What it argues
constellation.png	end of The four bodies	four bodies, four pins, and that Astra and Terra are alternatives — exactly one chosen per delegation
flow.png	top of The flow	one delegation end to end, including the four points where it can stop
refusal.png	end of What it will not do	the same command accepted and refused, with the filesystem untouched

Each was checked against the repository, not accepted on sight

An earlier pass carried a FABLEWRIGHT wordmark and, in the proof image, two role filenames and an install command that do not exist here:

Earlier pass showed	Actually shipped
orrery-sol-researcher.toml	orrery-sol-reviewer.toml
orrery-terra-ops.toml	orrery-terra-implementer.toml
$ fw install	no such command

Publishing that would have put a claim on the front page that the shipped files contradict — the exact failure verify.sh exists to catch — and it would have done so under the words "LAUNCH PROOF".

What is committed

The real command, sh plugins/orrery/scripts/install-agents.sh --target-dir ~/.codex/agents, the three real role filenames, and output whose load-bearing lines are verbatim from an actual run:

INSTALL PASSED: Astra, Sol, and Terra exactly match ./agents; no legacy Luna file remains.
ERROR: Astra destination is conflict and will not be replaced: ~/.codex/agents/orrery-astra-implementer.toml
[exit 1]

One thing stated plainly: the narrower progress lines between those are a readable dramatization of steps the installer genuinely performs — destination classification, the legacy-Luna check, the post-install exactness re-check — rather than literal stdout. Every load-bearing line is real.

Alt text describes content rather than naming files, so all three claims survive for anyone reading without images: which model is pinned to which lane, that exactly one implementer runs per delegation, and that a refusal leaves the filesystem untouched.

Verification

bun run validate link-checks image paths, so the embeds and the files are proven to agree — this is why the images could not be committed before the files existed.

bun run ci green: VERIFY PASSED three-role · 82 tests across 6 files, 0 fail · validate · sbom orrery-0.7.0.cdx.json (18 packaged files, 0 runtime dependencies) · release-check.

Risk

Documentation and image assets only. No code, no behaviour change.