Implement visible ADV History presentation

docs/engine-re.md

@@ -1310,11 +1310,11 @@ future numbered-save integration seam, not a reason to choose a shared-profile b
 History button can be complete first, while save/load restoration stays deferred with the wider storage
 architecture decision.
 
-The remaining supporting gaps are ordinary presentation operations: primary/ruby font sizes (`0x75/0x197`),
-font weight (`0x2bd`), colors/effect mode/offset (`0x76/0x77/0x78/0x1a4`), layout origin (`0x198`), surface
-rectangle fill (`0x20b`), message-window alpha (`0x131`), and retained-object presentation (`0x222`). The
-`0xd3/0xd4/0xd5` callback-sequence family drives the smooth scrollbar interpolation and is the main
-remaining scheduler detail; omitting it would affect motion fidelity, not the backlog data model.
+History's display support consists of the ordinary presentation operations: primary/ruby font sizes
+(`0x75/0x197`), font weight (`0x2bd`), colors/effect mode/offset (`0x76/0x77/0x78/0x1a4`), layout origin
+(`0x198`), surface rectangle fill (`0x20b`), message-window alpha (`0x131`), and retained-object presentation
+(`0x222`). The `0xd3/0xd4/0xd5` callback-sequence family drives the smooth scrollbar interpolation; omitting
+it affects motion fidelity, not the backlog data model.
 
 The first port slice now implements an engine/session-owned `AdvTextHistory` service. `GameSession` carries
 one instance across VM scene runs, while a standalone VM owns its instance for the full top-level and nested
@@ -1334,6 +1334,26 @@ and does not mutate it. Query scans stop at the next group-start record; their t
 the native helpers. History's remaining work is therefore presentation and interaction rather than backlog
 data access.
 
+The third port slice implements visible History presentation without moving canonical records into Godot.
+Op `0x1d1` asks `AdvTextHistory` to select one retained group, skip metadata/voice records, and build a
+host-facing render batch using the target layout configured by `0x70/0x71`, positioned by `0x198`, and
+seeded by `0x7a`. `HISTORY.BIN` passes zero for flags and both color overrides, so this is its exact ordinary
+binding path; the native flag-4 raster-without-binding and flag-8 side-effect modes remain outside the live
+game call site. Godot owns only replaceable labels keyed by target layout, applies the retained font/color/
+effect snapshot, and clears stale labels whenever `0x71` resets that layout.
+
+The same slice implements the support calls at their natural seams. Op `0x131` reads a host configuration
+property (currently defaulting to zero; choosing a profile/config persistence backend remains deferred),
+`0x20b` clears the addressed region of the mutable name-strip text surface, and `0x222` requests one retained
+recomposition boundary. Surface text is now a list rather than one draw per slot: HISTORY's five 600x30
+source rows therefore retain five independent speaker names, and compositor source-rectangle clipping maps
+each one into its bound object. A real-script regression retains SC0000 page one, runs unmodified
+`HISTORY.BIN`, observes a non-empty rendered row, and reaches its `(0,60000)` presentation call.
+
+History's remaining work is interaction fidelity: `0x12e` rectangle hover/hit selection, stored voice replay
+through `0x1bd`, and the `0xd3/0xd4/0xd5` smooth-scroll callback scheduler. None changes backlog ownership or
+requires choosing a save/profile backend.
+
 The original dependency order was **Hide Window first** to establish reusable callback/coroutine input, then
 Read-message Skip, then History after both the input layer and message-completion seam exist. Hide Window is
 now complete. Read-message Skip's semantics remain understood, but its implementation is deferred until the

docs/opcode-reference.md

@@ -321,7 +321,7 @@ SC0000 label_1235a reaches this when 0x1c7/0x1cc are zero. Native run-state bit
 ### 0x20b `fill-surface-rect` (fill-surface-rect, argc 7)
 - **summary:** (surface_slot)(x)(y)(width)(height)(alpha)(rgb) - fill a clipped rectangle on a graphics surface with the supplied color and alpha.
 - **grounding:** source=investigation, confidence=high
-- **evidence:** Ghidra /v2: op_0x20b_handler@0x422d50 converts x/y/width/height to an exclusive rectangle, clamps alpha to 255, repacks RGB to native ARGB, and calls the surface manager's rectangle-fill path at 0x4790e0. HISTORY.BIN clears each 400x30 name strip on temporary surface 0xc1 before draw-string.
+- **evidence:** Ghidra /v2: op_0x20b_handler@0x422d50 converts x/y/width/height to an exclusive rectangle, clamps alpha to 255, repacks RGB to native ARGB, and calls the surface manager's rectangle-fill path at 0x4790e0. HISTORY.BIN clears each 600x30 name strip on temporary surface 0xc1 before draw-string.
 
 ### 0x20c `present-frame` (present-frame, argc 0)
 - **summary:** Present the composited frame; label_1235a uses this on the read/message-skip branch to expose the completed foreground endpoint immediately.

docs/phase-a-slice-plan.md

@@ -1728,3 +1728,27 @@ remaining effectful gaps total 21 instructions.
 **Next:** implement History's display slice around `0x1d1`, layout origin `0x198`, message-window alpha
 `0x131`, surface fill `0x20b`, and retained-object presentation `0x222`. After visible backlog rows render,
 finish rectangle hover/interaction, voice replay, and the `0xd3/0xd4/0xd5` smooth-scroll scheduler details.
+
+### ADV History visible display implemented (2026-07-18)
+
+The third bounded slice is complete. Op `0x1d1` now selects one retained group and produces an engine-owned
+render batch for the requested target text layout. `0x198` updates that layout's origin, `0x71` clears stale
+host presentation, and the existing cursor/style setters provide the target baseline and retained font,
+color, outline, and effect state. The live `HISTORY.BIN` call passes flags/colors as zero, so the port renders
+its ordinary bound-text path without inventing behavior for unused native special modes.
+
+Godot maintains per-layout History labels while the engine remains the canonical backlog owner. The surface-
+text path was generalized from one string per surface to clipped lists, allowing all five speaker-name rows
+drawn into surface `0xc1` to coexist. Op `0x20b` clears each reused 600x30 name region, op `0x131` reads a
+host configuration seam with a backend-neutral default, and op `0x222` explicitly publishes the retained
+rebuild. No persistence, RT.DAT, or port-owned profile format was introduced.
+
+Four focused regressions cover target origin/cursor/style, alpha/fill/present operand shaping, layout reset,
+and an end-to-end real-script path: real SC0000 page-one records are shared into unmodified `HISTORY.BIN`,
+which produces a non-empty visible row and reaches `(0,60000)` presentation without a step-cap halt.
+Validation: engine 194/194, zero-warning Godot build, threaded `SELFTEST OK`. HISTORY is now 68/78 distinct
+opcodes and 840/854 instructions handled or safe-noop; its ten remaining effectful gaps total 14 instructions.
+
+**Next:** implement the basic History interaction slice around rectangle hit/hover (`0x12e`) and clean exit
+using the existing callback layer. Then add stored voice replay (`0x1bd`); leave `0xd3/0xd4/0xd5` smooth
+scroll interpolation as a separate fidelity slice.