[GoGoKo699]

The Preskill guide now has a complete 30-milestone map (12 background and 18 narrative targets), with a focused bridge to Optical Detector Capacity. The bridge explains the qubit counting optimum, its failure at the next photon cutoff, the optical half/full logarithmic rates, and the separately conserved local reference model. The four worked bridges and exact scientific claims remain intact.

Actual hosting checks exposed Markdown corruption of braces, spacing and norm bars, and a native MathML layout defect that stacked four tagged equations. Explicit delimiters and grouping repair the display while preserving all inner mathematical tokens, equation labels and protected originals. The new read-only workflow compares every scoped expression at wide and narrow widths and retains the actual captures for visual inspection.

Validation of final head 4f5832d4aab275e7a3b59161b08dbf0371b28189, tree 3eb45d0985a333fff3b65eb66f73d9029db75d1b:

• All 128 published file blobs match the checked source. All 70 protected files, MIT license and exact Purpose/contact notice are preserved. The local checks validate 207 links, all 11 tests, 23 scientific groups and the rational certificate.
• Scientific run 40909677983 passes. Downloaded artifact 12912658755 has ZIP SHA256 db6957b2ddc2676d0437e317381f195ffe92dd34c12602a6f5f1d3f003238c89; every source file and nested source ZIP matches. The hosted runtime gives accepted numerical differences in 4/23/50/59 fields across the four reports, at most 3.552713678800501e-15. This is numerical agreement, not byte identity; no reference was refreshed.
• Hosted run 40909677853, job 123573916793, passes all 18 pages and 614 expressions at 1440 and 760 pixels, with 21 source-bound contracts and zero failures. Artifact 12913790730 ZIP SHA256 0d7b5772d3ab0ba1626bd3b5fd8e0ab14e6d4b005f85765b966a180897b85448; report SHA256 1c875dead66f849a6be095a9e1da049073c09221a8fef1b0d932ed851cdc8fec.
• Actual screenshots for every scoped page were visually compared with source at both widths, including all eight numbered theorem equations. Operands, relations, cases and annotations are readable. Native MathML leaves decorative box/underbrace strokes unpainted, and technical path tables/code blocks use normal horizontal scrolling at narrow widths; these styling limits are recorded. No comparison rule was waived. This is internal project QA, not external expert review.

Actual merged main bec6da75ea9acd24e13b81ab91725b716bce66b9 was inspected separately and has the identical checked tree. Main scientific run 40911287975/job 123579626448 passes; artifact 12912899805 ZIP SHA256 1596ff3dcafc87fde5bca964ef189d1964801b26c109ce35bdf022c246907004 matches all 128 source files and the nested source ZIP, with 70 protected files and 207 links verified. Its accepted floating-point comparison records are byte-identical to the head run; neither run claims byte equality with the numerical references.

Main hosted run 40911287770/job 123579624610 repeats the complete 18-page/614-expression pass at both widths. Artifact 12913792100 ZIP SHA256 fb9b6993835e4a8333355d67d5fca02c6c5138e14a7f6f140cb4316b85d61e3c; report SHA256 61b3ecced011a5bbb6cb475c4d73d2b6b0e842536f588f4ccbd5ad21a492fe58. All 79 retained artifact hashes and pinned source pages were checked. Actual main README and repaired theorem body pixels match the fully reviewed head at both widths, including horizontal, complete tagged equations.