Changelog

Three fixes for the Duncan chat tray:

1. Removed example conversations from system prompt — local models were

parroting them verbatim instead of following the behavioral guidance.

Replaced with terse directive-only prompt.

2. Added response sanitizer that strips raw chat template tokens

(<|assistant|>, <|end|>, <|im_start|>, etc.) and role prefixes

("- User:", "Assistant:", "Duncan:") that local models leak into output.

3. Injected user's display name (from app settings) into the system prompt

so Duncan addresses the user by name naturally.

Introduces a three-tier response budget system (Short/Medium/Long) that

classifies the user's message intent before sending the AI request. Short

tier (greetings, yes/no, can't-do topics) caps at 100 tokens with 1-2

sentence guidance. Medium tier (explanations, how-to, brainstorming) allows

300 tokens and 3-5 sentences. Long tier (summarize a page, draft an email,

long-form writing) allows 800 tokens with paragraph-level output. The

classifier uses keyword matching with message length heuristics, and the

system prompt length rule adapts per tier. All configuration remains

centralized in AiPersona.cs.

The previous system prompt was a single generic sentence that the model

ignored, producing wall-of-text responses with repetitive AI disclaimers.

Replaced with a strict rule-based prompt enforcing 1-2 sentence replies,

no self-identification, no filler, and clear boundaries around what Duncan

can and cannot do (no internet, local-only). Dropped MaxTokens from 1024

to 200 and Temperature from 0.7 to 0.4 to further constrain verbosity.

Moved the system prompt into AiPersona.cs alongside the Name constant so

all persona configuration lives in one file.

All user-facing AI name references now derive from AiPersona.Name (a single

const in AiPersona.cs). XAML uses x:Static bindings, C# uses string

interpolation. Changing the AI persona name is now a one-line edit. Renamed

from Hugo to Duncan. Updated command palette entries, tray header, tooltip,

speech balloon, chat watermark, system prompt, and fallback user labels.

The IsAnyOverlayPanelOpen property included IsAiTrayOpen, which caused the

generic click-outside backdrop (ZIndex 999) to appear on top of the AI tray

drawer (ZIndex 12). Any click inside the tray hit the generic backdrop first,

immediately closing all panels. The AI tray already has its own dedicated

click-outside backdrop (AiTrayBackdrop at ZIndex 11) so it does not need the

generic overlay. Removed IsAiTrayOpen from IsAnyOverlayPanelOpen and from

CloseAllPanels to let the tray handle its own dismiss behavior.