research: Squeak & Pharo deep dive (image-based Smalltalk); SHARD-WP-0004 T6+T8

Combined memo (justified merge). The image = purest 'live' end; hardens
the image-is-not-a-store boundary (export->files only), generalizing
'attach files not the kernel/image'. Pharo Tonel/Iceberg confirms even
image traditions externalize to git text. Names the live<->snapshot
projection axis (T16). Boundary/enrichment-only, no new UC. Marks T6+T8 done.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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@@ -22,7 +22,7 @@ Learnings update both SCOPE and INTENT where necessary.
| Research | yawex prior art; c2 origins; federation concepts; wikiengines overview (`research/260608-*/`); XWiki/TWiki/Foswiki deep dives (`research/260613-*/`); Xanadu + ZigZag + Roam + Obsidian + Notion + Joplin + Logseq + local-first workspaces (Anytype/AFFiNE/AppFlowy) + Trilium + Wiki.js + Federated Wiki + Wikibase + git-forge wikis + TiddlyWiki + ikiwiki + Quip + MojoMojo + Oddmuse + UseModWiki deep dives & shard-spectrum synthesis (`research/260614-*/`) |
| Demand | NetKingdom integration asks captured, not yet negotiated |
| Spec | Architecture blueprint drafted; UseCaseCatalog 84 UCs from research; PRD/TSD scaffolds |
| Work | `SHARD-WP-0001` active (6 tasks); `SHARD-WP-0002` active (16 tasks: T1T10 federation + T11T16 adapter contract); `SHARD-WP-0003` **done** (9 engine dives complete); `SHARD-WP-0004` active (8 computational-knowledge dives: T1 literate programming, T2 Mathematica, T3 Jupyter, T7 Glamorous Toolkit done) |
| Work | `SHARD-WP-0001` active (6 tasks); `SHARD-WP-0002` active (16 tasks: T1T10 federation + T11T16 adapter contract); `SHARD-WP-0003` **done** (9 engine dives complete); `SHARD-WP-0004` active (8 computational-knowledge dives: T1 literate programming, T2 Mathematica, T3 Jupyter, T6 Squeak + T8 Pharo (merged), T7 Glamorous Toolkit done) |
## In Scope (today)