Stop legacy BIOS clients trying to sanboot the floppy on exit

`sanboot --drive 0` is a UEFI idea: it means "the first disk carrying
\EFI\Boot\bootx64.efi". Under BIOS, iPXE hands the number straight to
int13, where 0x00 is the first FLOPPY and hard disks start at 0x80 -- so
since 5583681 (2024-07) every legacy client has spent its first exit
attempt trying to boot a floppy that is not there:

    Booting from SAN device 0x00
    Boot from SAN device 0x00 failed: Input/output error
    Booting from SAN device 0x80

That commit prepended the EFI probe to a string that had been
`--drive 0x80 || 0x81 || 0x82`, and applied it to both platforms. The
`|| 0x80` behind it means the machine usually still boots, which is why
it went unnoticed for two years -- but the failed int13 attempt is not
free on every firmware, and the error it prints sends people hunting a
disk fault that does not exist (forum topic 18237, a Wyse 5060 in legacy
mode).

Gate on platform, not arch, and only where ${platform} is positively
known NOT to be efi -- it is absent from some older chain URLs, and EFI
is the safe assumption when missing: an EFI client handed the BIOS
string loses the \EFI\Boot probe, while a BIOS client handed the EFI
string is the bug being fixed. Same shape as the Secure Boot menu gate
already in _filterMenus().

The golden file is the gate: reverting the source line turns 19 BIOS
lines red. `exit-sanboot-efi` is new, so both platforms are pinned and a
future edit cannot collapse them back to one string.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011yRrcKNuEfUsrgYys9vosD

Author: mastacontrola

packages/web/management/languages/de_DE.UTF-8/LC_MESSAGES/messages.po

@@ -10410,7 +10410,6 @@ msgstr ""
 msgid "The term goes in q. limit caps results PER CLASS, not overall, and this route is not paged -- there is no nextUrl to follow. Within a class, names that start with the term sort first. Both fields may also be sent as POST body fields. Also reachable as /search."
 msgstr ""
 
-#, php-format
 msgid "The term. Because it is a path segment, a term containing / ? # or % cannot travel this way; use /unisearch?q= instead."
 msgstr ""
 

packages/web/management/languages/en_US.UTF-8/LC_MESSAGES/messages.po

@@ -10419,7 +10419,6 @@ msgstr ""
 msgid "The term goes in q. limit caps results PER CLASS, not overall, and this route is not paged -- there is no nextUrl to follow. Within a class, names that start with the term sort first. Both fields may also be sent as POST body fields. Also reachable as /search."
 msgstr ""
 
-#, php-format
 msgid "The term. Because it is a path segment, a term containing / ? # or % cannot travel this way; use /unisearch?q= instead."
 msgstr ""
 

packages/web/management/languages/es_ES.UTF-8/LC_MESSAGES/messages.po

@@ -10576,7 +10576,6 @@ msgstr ""
 msgid "The term goes in q. limit caps results PER CLASS, not overall, and this route is not paged -- there is no nextUrl to follow. Within a class, names that start with the term sort first. Both fields may also be sent as POST body fields. Also reachable as /search."
 msgstr ""
 
-#, php-format
 msgid "The term. Because it is a path segment, a term containing / ? # or % cannot travel this way; use /unisearch?q= instead."
 msgstr ""
 

packages/web/management/languages/eu_ES.UTF-8/LC_MESSAGES/messages.po

@@ -10411,7 +10411,6 @@ msgstr ""
 msgid "The term goes in q. limit caps results PER CLASS, not overall, and this route is not paged -- there is no nextUrl to follow. Within a class, names that start with the term sort first. Both fields may also be sent as POST body fields. Also reachable as /search."
 msgstr ""
 
-#, php-format
 msgid "The term. Because it is a path segment, a term containing / ? # or % cannot travel this way; use /unisearch?q= instead."
 msgstr ""
 

packages/web/management/languages/fr_FR.UTF-8/LC_MESSAGES/messages.po

@@ -10403,7 +10403,6 @@ msgstr ""
 msgid "The term goes in q. limit caps results PER CLASS, not overall, and this route is not paged -- there is no nextUrl to follow. Within a class, names that start with the term sort first. Both fields may also be sent as POST body fields. Also reachable as /search."
 msgstr ""
 
-#, php-format
 msgid "The term. Because it is a path segment, a term containing / ? # or % cannot travel this way; use /unisearch?q= instead."
 msgstr ""
 

packages/web/management/languages/it_IT.UTF-8/LC_MESSAGES/messages.po

@@ -10126,7 +10126,6 @@ msgstr ""
 msgid "The term goes in q. limit caps results PER CLASS, not overall, and this route is not paged -- there is no nextUrl to follow. Within a class, names that start with the term sort first. Both fields may also be sent as POST body fields. Also reachable as /search."
 msgstr ""
 
-#, php-format
 msgid "The term. Because it is a path segment, a term containing / ? # or % cannot travel this way; use /unisearch?q= instead."
 msgstr ""
 

packages/web/management/languages/ja_JP.UTF-8/LC_MESSAGES/messages.po

@@ -10083,7 +10083,6 @@ msgstr ""
 msgid "The term goes in q. limit caps results PER CLASS, not overall, and this route is not paged -- there is no nextUrl to follow. Within a class, names that start with the term sort first. Both fields may also be sent as POST body fields. Also reachable as /search."
 msgstr ""
 
-#, php-format
 msgid "The term. Because it is a path segment, a term containing / ? # or % cannot travel this way; use /unisearch?q= instead."
 msgstr ""
 

packages/web/management/languages/messages.pot

@@ -8923,7 +8923,6 @@ msgstr ""
 msgid "The term goes in q. limit caps results PER CLASS, not overall, and this route is not paged -- there is no nextUrl to follow. Within a class, names that start with the term sort first. Both fields may also be sent as POST body fields. Also reachable as /search."
 msgstr ""
 
-#, php-format
 msgid "The term. Because it is a path segment, a term containing / ? # or % cannot travel this way; use /unisearch?q= instead."
 msgstr ""
 

packages/web/management/languages/pt_BR.UTF-8/LC_MESSAGES/messages.po

@@ -10406,7 +10406,6 @@ msgstr ""
 msgid "The term goes in q. limit caps results PER CLASS, not overall, and this route is not paged -- there is no nextUrl to follow. Within a class, names that start with the term sort first. Both fields may also be sent as POST body fields. Also reachable as /search."
 msgstr ""
 
-#, php-format
 msgid "The term. Because it is a path segment, a term containing / ? # or % cannot travel this way; use /unisearch?q= instead."
 msgstr ""
 

packages/web/management/languages/zh_CN.UTF-8/LC_MESSAGES/messages.po

@@ -10406,7 +10406,6 @@ msgstr ""
 msgid "The term goes in q. limit caps results PER CLASS, not overall, and this route is not paged -- there is no nextUrl to follow. Within a class, names that start with the term sort first. Both fields may also be sent as POST body fields. Also reachable as /search."
 msgstr ""
 
-#, php-format
 msgid "The term. Because it is a path segment, a term containing / ? # or % cannot travel this way; use /unisearch?q= instead."
 msgstr ""