Fix EQNotify add-tag description exceeding Discord's 100-char limit (boot crash)

[ebm5025]

Problem

The bot crashes on boot during slash-command registration:

ExpectedConstraintError: Invalid string length
  constraint: 's.string().lengthLessThanOrEqual()',
  given: "Keyword to match at the start of a batphone word (e.g. 'doze' hits 'Dozekar'). Use 'all' for every batphone.",
  expected: 'expected.length <= 100'
  at ... add-tag-subcommand.js:19 (setDescription)

Discord caps slash-command option descriptions at 100 characters. The /eqnotify add-tag description added in #266 was 108 characters. discord.js only validates this at command-registration time (not compile time), so it passed tsc and the unit tests but took down the worker on deploy.

Fix

• Shortened the description to 93 characters, keeping the doze→Dozekar hint:
  Keyword matched at the start of a batphone word (e.g. 'doze' hits Dozekar). 'all' = every BP.
• Added an inline comment noting the 100-char cap.
• Audited every other EQNotify command/subcommand/option description — all are already within the limit; add-tag was the only offender.

Testing

• yarn tsc — clean.
• Verified the new literal is 93 chars (≤ 100).

🤖 Generated with Claude Code

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