v1.6.3 — Tight PDF link rects + preserved whitespace + Projects layout fix

Bug fix patch. Closes two independent hyperlink clickable-area
defects that surfaced on CV gallery presets and made the LinkedIn /
GitHub contact rows hijack each other's clicks (paragraph-level
link path) or drift past their visible text (span-level link path
through multi-space separators). No public API change — engine,
DSL, themes, templates, and backend records all stay
source-compatible with v1.6.2.

Engine

• Paragraph-level link annotations now hug rendered text.
  PdfFixedLayoutBackend used to emit a paragraph's linkOptions
  as a single rectangle covering the entire fragment box
  (fragment.x() + fragment.width()), ignoring TextAlign.RIGHT
  / TextAlign.CENTER. Stacked right-aligned contact paragraphs
  (e.g. one per LinkedIn / GitHub icon row in Timeline Minimal /
  Sidebar Portrait / Monogram Sidebar) therefore produced
  full-column-wide rects that overlapped the empty alignment gap of
  neighbouring rows — hovering over GitHub clicked the LinkedIn row.
  The backend now emits one per-line rect tight to line.width()
  positioned at the alignment-aware lineX, matching how
  inline-span links already worked. Span-level link emission, table
  / shape / barcode payload links, and bookmark anchoring are
  unchanged.
• Glyph sanitizer preserves all author whitespace.
  PdfFont.sanitizeForRender used to collapse any run of consecutive
  spaces into a single space, both for whitespace-only tokens (the
  " " halves of a " | " separator) and for inter-word gaps
  in spaced-caps strings (spacedUpper("ARTEM DEMCHYSHYN") produces
  "A R T E M D E M C H Y S H Y N" with deliberate triple-spaces
  between words). The collapse shrank the rendered glyph stream
  under measurement, drifting inline-link rectangles ~8pt per
  " | " separator past their visible labels and visually
  merging spaced-caps titles back into a single run ("A R T E M D E M C H Y S H Y N" — no word boundary). The sanitizer no longer
  collapses adjacent spaces; newlines / NBSP / non-tab control
  characters still resolve to a single space each, but author
  whitespace is now preserved verbatim so wrap geometry,
  link-rectangle emission, and showText(...) all see the same
  string. Layout snapshot baselines for five CV presets and one
  nested-list document widened to reflect the recovered whitespace —
  the deliberate visual change is the bug fix.

Templates

• Boxed Sections projects render as title + indented description.
  The "Projects" module now renders each bullet-list or
  IndentedBlock item as two stacked paragraphs — bullet plus bold
  project name (with an optional tech-stack chunk in parentheses) on
  the first line, then a hanging-indented description below aligned
  to the project name (not the bullet). The previous single-line
  rendering ran the project name and description together. Bullet
  marker, hanging-indent, and surrounding modules are unchanged.
  Example data in ExampleDataFactory.sampleCvSpecV2 and
  PresetVisualGalleryTest now ships tech-stack chunks ("Java 21, PDFBox, Maven, JMH") so the gallery PDFs reflect the new layout.

Tests

• New regression in PdfFixedLayoutBackendFeaturesTest —
  shouldTightlyHugRightAlignedParagraphLinkRectangles — stacks
  three right-aligned link paragraphs and asserts each clickable
  rect hugs its rendered label width (≤ 150pt), sits flush against
  the inner right margin, and does not overlap the Y-band of
  neighbouring rows.
• New regression in PdfFixedLayoutBackendFeaturesTest —
  shouldKeepCenteredInlineLinkRectanglesAlignedAcrossMultiSpaceSeparators
  — renders a centered contact line built with " | " separators
  and asserts the three resulting link rectangles preserve
  left-to-right order with non-overlapping X ranges and a sane
  per-separator gap (5..40pt), pinning the bug where collapsed
  whitespace pushed later rects past the line.
• New regression in PdfFontSanitizerTest —
  sanitizeForRender_preservesWhitespaceOnlyTokensVerbatim — pins
  the whitespace-only short-circuit so render width stays in
  lockstep with getTextWidth for tokenised contact-line
  separators.