Tighten Undertow Run's early attack pacing

docs/resume-checkpoint.md

@@ -4,9 +4,9 @@ The included SourceF runtime now supports up to **256 explicitly listed Original
 
 The pack still contains **5,463 reviewed HD pictures in 3,625 complete sequences**, including **4,338 Terrain pictures**. **290 originals remain**: 197 Terrain, 59 enemies and ground objects, 33 UI/other and one boss. All 9,399 data files / 8,355,478,070 bytes, the eight palette opt-ins and the existing SourceE artwork/material/context authorities remain unchanged. No larger-detail trial is admitted by this runtime activation.
 
-Focused production checks passed 113 Rust tests and 186 Python tests; 5 existing Rust tests were ignored. Full validation accepts all 5,463 frames with zero rejects, plus 45 mods with one override. Three 1920×1080 SDL controls completed successfully, and Root viewed all three full images. Their PNG, RGB and alpha results matched the SourceE H5463 controls across 6,220,800 pixels, with zero measured changes. These unchanged-art controls do not establish coverage or artwork approval for lists above 128 cells, every optional policy or all placements. The latest closed native Windows result is exact SourceE H5426 at 3f3107d6: 394 passed, 26 ignored and zero failed; no native Windows SourceF execution is claimed.
+Focused production checks passed 113 Rust tests and 186 Python tests; 5 existing Rust tests were ignored. Full validation accepts all 5,463 frames with zero rejects, plus 45 mods with one override. Three 1920×1080 SDL controls completed successfully, and Root viewed all three full images. Their PNG, RGB and alpha results matched the SourceE H5463 controls across 6,220,800 pixels, with zero measured changes. These unchanged-art controls do not establish coverage or artwork approval for lists above 128 cells, every optional policy or all placements. The preceding SourceE H5463 artwork package at `07d2955c` has also passed [native Windows validation](https://github.com/Quintine/RustRaptor/actions/runs/39038850978): 394 passed, 26 ignored and zero failed, including HD/mod validation, portable relocation and PCM sound-output checks. SourceF and this Mission 2 update have separate post-push Windows checks; their native execution is not inferred from that result.
 
-Iron Coast retains its published 14-mission retune and 45 current packages, including **Mission 2 version 1.0.2**. No mission schedules, scripts, prices or gameplay changed here; private pacing 1.0.3 is not part of this package. Earlier paid-route results and failed policies keep their recorded limits. See [Iron Coast retune evidence](iron-coast-retune.md). The 307 native AGX cinematic/font records remain preserved separately.
+Iron Coast includes its 14-mission retune and 45 packages, with **Stage II Mission 2 version 1.0.3**. One existing armed classic pass now arrives at tick 1,530 rather than 1,650. Separate replenished observers measured the early Training/Rookie lull falling from 8.70 to 3.73 seconds; ordinary paid continuations at all four difficulties still complete with unchanged shields and purchases. The seven campaign/enemy/weapon suites pass against SourceF: 65 passed, zero failed, four existing integration tests ignored. Earlier results retain their dated scope. See [Iron Coast retune evidence](iron-coast-retune.md). The 307 native AGX cinematic/font records remain preserved separately.
 
 Larger retained-detail lists still need independent whole-frame and genuine-context review, including coarse detail, palette cycling and neighboring join effects. Existing HOLDs and actual refusals remain in force. Current SourceF evidence and dated SourceE artwork records are separate in [runtime release evidence](hd-runtime-release.json). Validated package checkpoint; Git history records publication.