docs(ROADMAP): add TS→AffineScript estate migration campaign section (#247)

## Summary

Adds the in-flight TS→AffineScript campaign to the canonical standards
ROADMAP. Codifies 4-layer architecture, 7-step order, dependency graph,
and bidirectional links to umbrella issue #239 + 7 step issues
#240–#246.

Mirrors the same structure as the memory tracker so the roadmap, issues,
and tracker are in lockstep.

## Test plan

- [x] Layer-1 PRs referenced are merged or armed (hypatia#375/#378,
standards#235/#238, reposystem#82)
- [x] All 8 issues (umbrella + 7 steps) filed in standards (#239–#246)
- [ ] Project-board URL populated after auth scope refresh

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Author: hyperpolymath

ROADMAP.adoc

@@ -170,6 +170,84 @@ See: https://github.com/hyperpolymath/palimpsest-license[palimpsest-license repo
 * **Protocol specifications** — Preferred serialization (MessagePack, Protobuf)
 * **Testing frameworks** — Approved testing tools per language
 
+=== TypeScript → AffineScript Estate Migration (IN-FLIGHT 2026-05-28)
+
+Multi-session estate-wide migration of TypeScript to AffineScript, parallel to the completed V→Zig sweep (2026-05-28) but at very different scale (~50-80 PRs across ~38 repos vs V→Zig's 16-PR single session).
+
+**Campaign umbrella**: https://github.com/hyperpolymath/standards/issues/239[#239]
+
+==== 4-layer architecture
+
+[cols="1,3,1", options="header"]
+|===
+|Layer |Description |Status
+
+|**Layer 1 — Policy & enforcement**
+|hypatia `:typescript_detected` rule + `path_allow_prefixes` (9 carve-out classes); standards `.claude/CLAUDE.md` exemption table; `LANGUAGE-POLICY.adoc` Banned TS row; `language-policy.yml` CI gate. Layer-1 PRs: hypatia#375, hypatia#378, standards#235, standards#238, reposystem#82.
+|Complete
+
+|**Layer 2 — Stdlib binding capacity**
+|AffineScript stdlib must cover the host surface each port needs. Exists today: `Deno.affine` (readTextFile/writeTextFile/readDirNames/path), `json.affine` v0.3 (Json sum type + Zig FFI parse), `Vscode.affine` (55 fns), `VscodeLanguageClient.affine`. Known gaps: recursive walk, regex, Set, general `Map<K,V>`, `Date.toISOString`, WebExt/WP-admin/Zotero APIs.
+|Partial (step 3 discharges as ports surface gaps)
+
+|**Layer 3 — Physical file ports**
+|~285 estate-authored `.ts`/`.tsx` files across 38 repos (post-carve-out). Unblocked: ~215 / ~30 repos. Plugin-host-blocked: ~70 / 5 repos. Each port is a non-trivial rewrite, not a shim swap.
+|In flight
+
+|**Layer 4 — Parallel dependency: AS bindings top-50 roadmap**
+|Plugin-host APIs (WebExtensions, WP-admin, Zotero, MailExt) must be bound in `affinescript/stdlib/` before the corresponding plugin repos can migrate. Tracked separately at `project_affinescript_bindings_top50_roadmap`.
+|Multi-week parallel
+|===
+
+==== Step ordering (value-per-effort)
+
+[cols="1,4,2", options="header"]
+|===
+|Step |Description |Issue
+
+|**①** |SEED PORT — phronesis 54L VSCode extension to `.affine` (binding coverage confirmed)
+|https://github.com/hyperpolymath/standards/issues/240[#240]
+
+|**②** |TAIL BATCH 1 — pure-logic small repos (≤3 files each)
+|https://github.com/hyperpolymath/standards/issues/241[#241]
+
+|**③** |STDLIB FILL — discharge gaps surfaced by step 2
+|https://github.com/hyperpolymath/standards/issues/242[#242]
+
+|**④** |TAIL BATCH 2 — 4-9 file mid-tier repos
+|https://github.com/hyperpolymath/standards/issues/243[#243]
+
+|**⑤** |IDAPTIK DLC PORT — 52 files (VM/instruction core)
+|https://github.com/hyperpolymath/standards/issues/244[#244]
+
+|**⑥** |PLUGIN-HOST BINDINGS — cross-ref AS top-50 roadmap
+|https://github.com/hyperpolymath/standards/issues/245[#245]
+
+|**⑦** |PLUGIN REPOS — 5 repos / 70 files (post step 6)
+|https://github.com/hyperpolymath/standards/issues/246[#246]
+|===
+
+==== Dependency graph
+
+[source]
+----
+step 1 (seed)
+  └─→ step 2 (tail batch 1) ──→ step 3 (stdlib fill) ──→ step 4 (tail batch 2)
+                                                          └─→ step 5 (idaptik)
+step 6 (host bindings, parallel) ──→ step 7 (plugin repos)
+----
+
+==== Cross-references
+
+* **GitHub Projects board**: link inserted after `gh auth refresh -s project,read:project` (auth scope refresh required to publish board view URL)
+* **Memory tracker**: `project_estate_ts_to_affinescript_2026_05_28.md`
+* **AS bindings parallel**: `project_affinescript_bindings_top50_roadmap.md`
+* **V-lang precedent (completed 2026-05-28)**: `project_estate_vlang_remediation_2026_05_28.md`
+
+==== Scope safety
+
+Every per-repo PR runs the pre-PR ownership gate (`gh repo view hyperpolymath/<repo> --json owner,isFork,parent` → `owner=hyperpolymath, isFork=false, parent=null`). Upstream forks and archived repos are carve-outs in the hypatia rule and never touched.
+
 == Non-Goals
 
 This repository does *not* aim to provide: