feat: add Text Utilities extension

[pulkitxm]

Adds Text Utilities as a Desk ability with suite-aware paste and snippet handling, clipboard privacy controls, and keyboard monitoring that stays idle without enabled snippets.

[pukbot]

text utilities working through the packaged CLI:

$ ed text clean-url 'https://example.com/report?utm_source=newsletter&keep=weekly' --json | jq -c .
{"changed":true,"removed":["utm_source"],"url":"https://example.com/report?keep=weekly"}
$ ed text snippets add ';ship' 'Ready {{date}}' --name Release --folder Work --json | jq -c '{index,name,trigger,folder,replacement,enabled}'
{"index":1,"name":"Release","trigger":";ship","folder":"Work","replacement":"Ready {{date}}","enabled":true}
$ ed text status --json | jq -c '{enabled,snippetCount,snippetsEnabled,shortcut,autoClearDelay}'
{"enabled":true,"snippetCount":1,"snippetsEnabled":true,"shortcut":"⌃⌥⌘V","autoClearDelay":30}

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Automated comment posted by Pukbot from an agent-assisted workflow.

from: @pulkitxm

[pukbot]

text utilities with synthetic snippets and isolated clipboard settings.

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Automated comment posted by Pukbot from an agent-assisted workflow.

from: @pulkitxm