0.9.112

The Muse plugin now declares two SessionStart hooks, so Muse on Windows gets the mandate and the sheet's usable role lines when the harness PATH has no sh. session-start runs the shared shell script, and session-start-windows runs hooks/session-start.ps1 muse. Muse's native hook schema takes one command per hook and rejects a per-OS variant such as commandWindows, so each hook stands down on the OS the other owns. On a machine without one of the two programs, that hook records a failed spawn at session start and the other delivers the context. @LuckyProtein found and fixed this in #332.

session-start.ps1 takes the runtime name, as session-start.sh does, and serves Codex and Muse through one sheet decoder. The decoder now drops one leading byte-order mark, as the shell reader and Pi do, and the script compares sheet text ordinally, as the shell hook compares bytes. PowerShell's -ccontains compares by culture, and under ICU globalization, as in pwsh 7, it skips zero-width characters. A session hook: off line after a second byte-order mark or a zero-width space used to turn off only the Codex Windows hook; every hook now keeps it on.

Verified. tests/session-hook-sheets.mjs adds roleCases, 35 sheets with the role lines each one adds, and the shell and PowerShell Muse suites both run them. tests/session-hook-windows.test.mjs runs the PowerShell hook under PSTACK_REQUIRE_WINDOWS_HOOK=1 with only the PowerShell directory on PATH, over sheetCases, roleCases, the XDG and USERPROFILE sheet paths, and the Linux stand-down. tests/session-hook.test.mjs covers the shell script standing down under a Windows uname. On PowerShell 7.6.9, under both ICU and invariant globalization, session-start.ps1 prints the same bytes as session-start.sh for both runtimes on 59 sheets.