v2.4.13

Hardened — Update dialog: warn-colour latch + explicit label wrapping

Follow-up hardening from a multi-agent review of the v2.4.12 content-fit work. Two latent
edge cases, neither user-visible in normal use, closed defensively:

• Status colour no longer latches to warn-orange. ShowError sets the status label to the
  warn colour but nothing restored it; if a normal state were ever shown after an error in the
  same dialog session, the message would render orange. ShowVersionComparison now resets the
  colour to the neutral default first.
• Label wrapping is now explicit. The status/detail labels already wrap long messages inside
  their layout column (verified: a 170-char string wraps to 3 lines at real 100% and 150%), but
  that relied on the table column implicitly constraining an AutoSize label. OnLoad now pins
  each label's MaximumSize.Width to the content width, so wrapping is unconditional and a
  pathological unbreakable token (e.g. a malformed long version tag with no spaces) is bounded to
  the content box instead of overflowing the fixed-width window.

Full Changelog: v2.4.12...v2.4.13