feat(THI-53): modernize glossary + compare

[tdody]

Summary

Modernizes the two remaining standalone pages around the THI-45/46 design system.

Glossary (pages/GlossaryPage.tsx)

• Editorial header: caps label + serif 44px "Every term, defined." title + search input (live filter across term / definition / formula)
• Category filter: <Segmented> with All / Metrics / Revenue / Expenses / Financing / Tax
• A–Z index: 26 JetBrains Mono buttons, border-rule-strong with hover accent when entries exist, disabled opacity-40 cursor-not-allowed when empty. Click scrolls to the letter section.
• Sections grid: 80px serif letter column (text-[48px] leading-none) + entry list on the right
• Entry layout: serif 22px term, caps category pill, ink-2 body, optional Formula box (border + mono value + caps label), optional Related row (caps label + accent buttons that smooth-scroll and briefly ring-accent the target)
• No-match state: dashed 2px border EmptyState pattern matching THI-47

Compare (components/Comparison/ComparisonView.tsx)

• Breadcrumb "← All properties" replacing the old indigo back button
• Caps label "Compare · N" + serif 44px "Side by side" title
• Full-width table with fixed 220px metric label column + per-property columns (serif name, ink-3 city · scenario subtitle)
• Best-value highlighting now adds a caps "Best" pill (border-accent text-accent) next to the winning cell in addition to accent-coloring the value. Non-best cells are text-ink.
• Verdict row uses caps labels with accent / warn / negative tones (Strong / Marginal / Negative)

Preserved behavior

• ComparePage.tsx wrapper unchanged — still parses ?ids=… and hands to ComparisonView
• getBestIndex / getVerdict logic identical
• Glossary data source unchanged (data/glossary.ts, 72 entries, 5 categories)
• Scroll-to-letter + ring-highlight on related-term click preserved

Test plan

• npm run lint — clean
• npm run build — passes, CSS 48.26 kB (-3 kB), 118 modules
• Dev run, Glossary: typing in search narrows visible entries; Segmented filter swaps the shown category; A–Z buttons disable for letters with zero entries after filtering; clicking an enabled letter scrolls to that section; related-term links scroll + ring the target
• Dev run, Compare: visit /compare?ids=a,b,c, best-value pill appears next to winning cell per row, verdict row renders tones correctly
• Dark mode: both pages use tokens throughout

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