Post WP-0002/0003 hygiene: update docs and archive finished workplans

Refresh README and SCOPE to reflect stale/fuzzy/DOM capabilities. Move
EANCH-WP-0001 through EANCH-WP-0003 to workplans/archived/260709-*.

README.md

@@ -21,9 +21,10 @@ The anchor slice has been extracted from the umbrella and now lives here.
 `@anchor` alias is retired. Shared-contract changes still happen in the umbrella
 (`citation-evidence/wiki/`), not here.
 
-Remaining anchor work beyond this MVP slice (stale/orphan semantics, fuzzy
-re-anchoring, HTML/Markdown selectors, promoting the PDF spike to a production
-adapter) is tracked as follow-on work — see `workplans/`.
+EANCH-WP-0002 and EANCH-WP-0003 delivered stale/orphan/fuzzy resolution,
+`PdfViewerAdapter`, and HTML/Markdown selectors plus `evidence-anchor/dom`.
+Remaining work (FragmentSelector, umbrella viewer wiring) is tracked in
+`workplans/`.
 
 ## Install model
 
@@ -44,20 +45,19 @@ src/
                                 HighlightRenderOptions, DocumentViewerAdapter
   css.d.ts                      ambient decl for side-effect .css imports
   selectors/                    pure core — no viewer/UI deps
-    index.ts                    createSelectors, resolveSelectors, DEFAULT_CONTEXT_CHARS
-    create.ts                   selector creation from a captured selection
-    resolve.ts                  resolution + the exact-match confidence ladder
-    create.test.ts
-    resolve.test.ts
-  pdf/                          adapter boundary — the only place viewer libs live
+    index.ts                    createSelectors, resolveSelectors, fuzzy, orphan helpers
+    create.ts                   selector creation (PDF + DOM branches)
+    resolve.ts                  resolution ladder + stale/fuzzy recovery
+    fuzzy.ts / orphan.ts / dom-path.ts
+    *.test.ts
+  pdf/                          PDF adapter boundary
     index.ts                    subpath entry `evidence-anchor/pdf`
-    pdf-selector-math.ts        pure page + normalized-rect math (capture↔selectors)
-    pdf-selector-math.test.ts
-    pdf-viewer-adapter-spike.tsx  concrete PDF adapter (PdfSpikeViewer)
-    scroll-job.ts               retryable scroll-to-highlight helper
-    scroll-job.test.ts
-    highlight-styles.css        highlight rendering styles
-    debug-textlayer.css         optional text-layer debugging styles
+    pdf-viewer-adapter-spike.tsx  PdfViewerAdapter (+ PdfSpikeViewer alias)
+    pdf-selector-math.ts / scroll-job.ts / *.css
+  dom/                          HTML/Markdown adapter boundary
+    index.ts                    subpath entry `evidence-anchor/dom`
+    html-viewer-adapter.tsx     HtmlViewerAdapter
+    dom-path.ts                 Range ↔ DomNodePath serialization
 ```
 
 Boundary rules for the layout (enforced by `eslint.config.js`):
@@ -70,10 +70,9 @@ Boundary rules for the layout (enforced by `eslint.config.js`):
   creation/resolution, the adapter types/contract, and the PDF adapter — so
   consumers resolve every anchor symbol (and their test `vi.mock(...)` calls)
   from a single specifier, matching the umbrella's prior `@anchor/index`;
-- a focused, viewer-free entry is also published at **`evidence-anchor/pdf`**
-  for consumers that want the PDF surface explicitly. The concrete adapter is
-  still the explicitly-named `PdfSpikeViewer` spike; promoting it to a
-  production `PDFViewerAdapter` is registered follow-on work (T06).
+- focused subpath entries: **`evidence-anchor/pdf`** (PDF adapter) and
+  **`evidence-anchor/dom`** (HTML/Markdown adapter). The root barrel re-exports
+  both for consumers that want a single import path.
 
 ## Public API (target surface)