feat(site): reshoot the memory visualisation on the new brand

[bkearns]

The homepage shot dated from 26 June and showed the viz in its old palette — hot pink #ff7eb3, coral #ff6b6b, lime #8ae25b and violet #c97eff node colours that appear nowhere in the brand. The viz has since been brought onto the published tokens (ferrosa-memory feat/viz-brand-conformance), so the picture no longer matched the product.

It's a real graph, not a mock

14,404 entities / 54,510 edges, built from three Rust workspaces (ferrosa, ferrosa-memory, forge) and the research corpus:

entity types	section 5,420 · place 3,828 · concept 3,340 · app 844 · module 314 · document 313 · preference 216 · crate 74 · pattern 52 · fold 3
edge types	contains 11,480 · references 11,319 · calls 8,281 · CO_OCCURS 6,241 · MENTIONED_IN 5,627 · part_of 5,524 · related_to 5,375 · uses 346 · subclass_of 133 · implements 133 · depends_on 51
orphans	0%

Crates, modules, structs, traits and functions carry their real dependency, containment, use and implementation edges. Documents carry their sections and the concepts they share — that concept sharing is what links the clusters into one web instead of a set of disjoint trees. The filter pills visible in the shot show the real crate names.

Captured after the graph fully populated

The snapshot streams over a WebSocket in chunks, so a fixed sleep either clips a half-drawn graph or wastes minutes. The capture waits for the page's own completion signal — SnapshotStreamEnd → status LIVE, snapshotStream cleared — and then for a settle period so the force layout stops moving. It fails loudly rather than shooting a partial graph:

t+ 3s  nodes=14404 streaming=1  streaming 14404/4500
t+10s  nodes=14404 streaming=1  streaming 14404/30000
t+17s  nodes=14404 streaming=1  streaming 14404/47000
t+21s  nodes=14404 streaming=0  LIVE
complete: nodes=14404 status=LIVE

Brand

Every hue comes from the brand's cool family — Electric Cyan → Core Blue → Blued Steel — with the semantic colours reserved for meaning rather than spent on categories. The Fe monogram in the chrome is the company mark; the asset previously rendered an invented Fm element tile with atomic number 100 (Fermium), which the brand rules forbid twice over ("products do not get element tiles of their own", and under Don't, "swap element symbol or atomic number for products").

Size

2560×1440, quantised to a 256-colour palette: 884 KB, down from 2,016 KB. The image is a dark ground with a narrow cool ramp, so it quantises with no visible loss — better than resampling, which would smear the single-pixel nodes into mush.

Not included

ferrosa-operations-console.png in the same homepage section is untouched — it's a different surface that hasn't had a branding pass, and is tracked separately.

Not merging this myself: standing rule is no auto-merge on public repos.