v0.16.2

Situation and culture cheat sheets, audiobook specials

• Common situations cheat sheets. Ordering at a cafe, a job interview, a doctor's visit: 49 situations per language, each with a realistic dialog, the phrases that carry it, typical mistakes and repair phrases for when things go wrong.
• Cultural traps cheat sheets. The mistakes grammar cannot explain: greeting rituals, politeness formulas, taboos and register. Each page describes tendencies with their region and context rather than laws.
• Every example is annotated. New kind pages carry the same word-by-word annotations, role labels and explanation notes as grammar pages, and the common-mistakes section now uses one structured format everywhere: statement, wrong example, corrected example, in both languages.
• Audiobook specials. A story can become a narrated audiobook with chapter navigation. Where two mixes exist you can switch between voice only and music and effects without losing your position.
• Grammar exercises never come up empty. When a chapter yields no material for Reference Tracking or Transform & Retag, a curated practice bank for the course's grammar rules steps in, clearly marked as not coming from your text.
• Fairer exercises. Check-up options no longer leak the answer through punctuation or editorial notes, error spotting shows its rules once at the top instead of next to each sentence, and case tagging lost its per-question hints.
• Role labeling teaches with color. Chosen roles color the whole answer button and repaint the sentence parts, so a finished exercise looks like the annotated examples you already know.
• The rule reference is a proper dialog. Opening a cheat sheet from an exercise now shows it in a focused modal with the language toggle, instead of a half-broken side panel.
• Sharper annotation display. Multi-word underlines and their labels react to hover across their whole area, lesson navigation buttons fit on phone screens, and theme switching no longer floods the console with styling warnings.