Apply Prisma player mood cues to prompts

[RANGROO]

Summary

• Accept the trusted, allowlisted plugin_player_routing_v2 mood field from the CHIM plugin.
• Translate supported moods into fixed player-name cues such as (RANGROO says with a smile on their face).
• Append the cue only to the current player prompt input.
• Keep mood cues out of stored and visible chat history.
• Reject unsupported values and preserve legacy behavior when mood is blank.

Counterpart client PR: https://github.com/Dwemer-Dynamics/CHIM/pull/171

Validation

• PHP lint passed.
• Focused PHPUnit checks passed: 12 tests, 26 assertions.
• Full suite comparison found no new failures:
  • Branch: 270 tests, 2624 assertions, 16 errors, 2 failures, 1 warning.
  • Base: 268 tests, 2617 assertions, the same 16 errors, 2 failures, and 1 warning.

Game Lab evidence

Game Lab result 20260825T150257312Z-01318a7c:

• Exact client and server PR artifacts were deployed to the Skyrim test rig.
• Prisma chat displayed the mood row, selected Happy, and reset to None after reopen.
• The server gate was healthy.
• The deployed helper generated the exact cue (RANGROO says with a smile on their face).
• The test rig was fully restored after the run.

Limit: the live run did not submit a player message, so the end-to-end in-game prompt-only behavior remains unproven by the rig. Focused PHPUnit coverage validates allowlisting, cue generation, prompt-only insertion, and legacy behavior.

[RANGROO]

Game Lab 20260825T150257312Z-01318a7c: Prisma chat showed all six mood choices, defaulted to None, selected Happy visibly, and reset to None after close/reopen. The deployed server helper generated (RANGROO says with a smile on their face). The rig was fully restored.

Limit: no live player message was submitted, so the complete in-game send-to-prompt path remains unproven by this run; focused automated tests cover it.