[screen] round 4 notes

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

fktry/lanes/LANE-SCREEN.md

@@ -302,3 +302,89 @@ piles** are the obvious next spatial artifacts (both are regional in the codex),
 biomes in §1 would suggest a mask per era. Also, now that strain reads the snapshot, THE SCREEN
 could react to `jammed` entities (a stalled factory *should* look bored — the feed drifting back
 toward clean is a nice punishment), but that's a design call, not a lane call.
+
+### Round 4 — 2026-07-17 — Opus 4.8
+
+SHIPPED: all 4 orders. Thanks for granting capacity unasked.
+- `boredom.ts` + `boredom.test.ts` (new) — pure freshness curve, 7 tests.
+- `strain.ts` — second dread axis; `strain.test.ts` now 20 tests. Screen suite 57 green.
+- `overlays.ts` — ratification card painter + era→standard table.
+- `glitchStack.ts` — pallor pass (desaturate + vignette), card composite.
+- `index.ts` — boredom wiring, card lifecycle, `researched` handling, pallor easing.
+
+DESIGN INTENT, one line each (as ordered):
+- **tremor = "how many seconds until dark?"** ACUTE. The cliff edge. Only exists while something
+  is actually draining, and it spikes as the runway runs out. Expressed as motion: judder.
+- **pallor = "how much cushion do I have at all?"** CHRONIC. Sits there in surplus. Expressed as
+  colour: the saturation drains out and the corners close in.
+A full tank draining fast is a jolt; a near-empty tank coasting is a way of life. Different
+questions, different senses, so they never mush into one dial.
+
+DECISIONS:
+- **Pallor drains saturation on purpose.** Codex §8: "ALL saturation belongs to media/artifacts.
+  Color = value = literally the resource." A factory with no reserve should therefore literally
+  have less colour. The vignette does the rest. It fits the existing strain/fever/seizure
+  hierarchy as the quiet one: chronic, slow tau (2.0s), never louder than the corruption.
+- **The capacity trap**: `1 - stored/capacity` with no tanks built reads as "totally empty" and
+  would have painted the boot state grey — blowing up round 3's sterile guarantee on day one.
+  No tanks = no cushion to miss = no pallor. That's not a special case, it's the honest reading:
+  you cannot be low on a reserve you never built. Two tests pin it (capacity 0 AND undefined).
+- **Boredom decays the DISPLAY, never the ledger.** `fresh` scales the targets; the tally
+  underneath is untouched. Verified explicitly: after 4 idle minutes the sky is clean but
+  `units: 72, tally: {melt: 60}, total: 0.893` are all exactly as earned.
+- **Boredom horizon: 60s grace, then 180s decay (4 minutes to clean).** You asked for minutes,
+  not seconds. A full minute of silence changes literally nothing, so a jam you notice, diagnose
+  and fix is free. Recovery rides the normal 1.2s shipment ease — against a 4-minute decay that
+  reads as a snap, and it reuses the wave feel rather than inventing a second motion.
+- **The card is timed in SECONDS, not frames** — it's a broadcast interruption and must be one
+  second at any refresh rate. Verified 30 frames @30fps AND 60 frames @60fps. (Deliberate
+  contrast with the scram wipe, which stays frame-counted: that one is a tape artifact, and tape
+  artifacts are quantized to frames. Two different clocks for two different fictions.)
+- Card composites dead last in screen space, so not one pixel of it is corrupted — that IS the
+  joke. Hard cut on exit, no fade: the corruption crashes back rather than seeping, because a
+  dissolve would make The Correction look negotiable.
+- Card says the STANDARD, not the tech id (codex §1 names: OPTICAL FILM, NTSC / PAL ANALOG,
+  MPEG-2 / DVD, H.264 / HEVC / AV1, DCP) with the green tick from §8's Correction uniform. The
+  tech id is in the small print where a compliance notice would put it.
+
+VERIFIED (fixture snapshots, pixel reads, contact sheet):
+- **Sterile guarantee survives the new axis**: boot AND a tankless factory in surplus both render
+  byte-for-byte identical to no-snapshot, pallor 0.
+- **Two dreads are separable at the pixel level**: full-tank-draining-fast → tremor 0.50, pallor
+  0, saturation 0.621 and corners 96 both *unchanged from healthy*. Empty-tank-coasting → tremor
+  0, pallor 0.972, saturation 0.500, corners 26.6. MAD between the two: **43.7**. They do not
+  look like the same emergency.
+- **Boredom**: untouched at 60s → fresh 0.834 at 90s → 0.5 at 150s → 0 at 240s → stays 0. Ledger
+  intact throughout. Resume: freshness 1 instantly, picture home in ~1.5s.
+- **Card**: 30 frames @30fps, 60 @60fps = 1.00s both. Mean luminance 83 → 235 → 83.
+- **Budget: 0.078 ms/frame** with GPU sync, 2000 entities, every artifact + both dreads + fever +
+  brownout + card compositing. ~26× under.
+- Note for the record: **tremor is invisible in a still** — it's motion, so the contact-sheet tile
+  looks like HEALTHY. I pinned it numerically instead (0.50, MAD 6.8 vs sterile). A still frame is
+  the wrong instrument for a judder and I didn't want that filed as "verified by screenshot".
+
+BLOCKED/BROKEN: nothing in my lane. **One thing the fleet needs to know:**
+- `npm test` currently shows 6 red in `src/ui/live.test.ts` ("reference factory should contain a
+  software decoder", commission/entity-count assertions). **Not mine, and not LANE-UI's fault
+  either**: LANE-DATA has uncommitted edits to all five `data/*.json` in the shared tree, and
+  UI's live tests build a reference factory out of that data. I confirmed by stashing *only*
+  `src/screen/` — the same 6 still fail with my lane entirely absent.
+- **Warning about the shared working tree**: my first instinct was `git stash`, which stashed
+  every lane's uncommitted work, not just mine — and made the UI tests "pass", which nearly had me
+  believing I'd broken them. `git stash push -- src/screen/` is the only safe form here. Any lane
+  bisecting a red test in this tree can be badly misled by a bare stash. Worth a line in
+  MASTERPLAN if you agree.
+
+CONTRACT REQUEST: none. v4 gave me everything; fixtures now carry `commissionQueue` and
+`research` ahead of the v5 hardening (order 4 done).
+
+PROPOSAL: boredom currently only listens for `shipped`. A factory that is *jammed solid* and one
+that is *idle because the player is redesigning it* decay identically. You approved the stalled-
+factory idea as design — if you want the distinction, `jammed` entities in the snapshot could make
+the sky decay noticeably faster (the work is rotting, not resting) while a clean idle stays
+gentle. That's a one-line read of data I already have. Say the word and it's a small round-5 item.
+
+NEXT (not self-assigning): the era→standard table means THE SCREEN now knows about eras — the §1
+strata skins (sepia Reel, phosphor Broadcast, rainbow-on-black Disc) could drive the *base feed's*
+palette per the player's current era, so the clean programming itself ages as they tech up. That
+plus the mask template would give era-flavoured biomes on the sky.