v0.2.0 — streaming node model, canvas-native rendering, localized site

Streaming becomes a first-class property of the node model, every kind renders as itself on the
canvas, and the project site ships in 11 languages. Packages remain private pending license
selection.

• Each node kind now renders rather than showing its source. A canvas-native display list
  (@dopejs/canvas-renderer) compiles markdown, the sanitized HTML subset, code, JSON, rows, and
  text into positioned text runs and rules: headings and emphasis, syntax highlighting, formatted
  JSON, and tables with aligned columns and a header rule. Layout is pure with injected text
  measurement, and depends on content and frame width only — zoom is a transform, so camera movement
  never rebuilds content. This is the canvas-native profile from design §7.4, not an HTML engine;
  unsupported constructs degrade to plain text.

• Streaming is a property of the node model, not an HTML feature. StreamSlice/StreamSegmenter
  (@dopejs/canvas-protocol) define one contract; @dopejs/canvas-artifact implements it for text
  (grapheme-safe), code and rows (whole lines), markdown (closed constructs only), and JSON (value
  boundaries, with completeJsonPrefix repairing the prefix so partial data parses), while the HTML
  safe prefix conforms to the same shape. createSegmentedPort (@dopejs/canvas-core) drives any
  kind through one ingestion engine. A property test caught a real defect where a markdown boundary
  retreated when a third backtick turned committed text into a fence; boundaries are now monotonic
  by test. A Canvas Stream story shows six kinds streaming into frames on the live canvas while the
  agent keeps announcing new nodes.

• Streaming rendering for agent-generated artifacts. computeSafePrefix and StreamingSanitizer
  (@dopejs/canvas-security) render only the part of a growing buffer whose parse no continuation
  can change, withholding partial tags, unterminated raw-text elements, incomplete character
  references, and split surrogate pairs; source quotas are enforced while streaming. A new
  streaming lifecycle state plus draftRevision/provisionalPaintRevision
  (@dopejs/canvas-protocol, @dopejs/canvas-core) keep provisional paint out of authoritative hit
  testing, pin artifacts against eviction mid-generation, and commit exactly one source revision on
  completion. StreamCoalescer and StreamingIngestion turn a token stream into budgeted render
  ticks. A Streaming story in the playground shows the safety boundary live.

• README and the project site gained a Streaming section; the site's package matrix now reflects
  canvas-native content rendering.

• Website is localized into 11 languages (English, 简体中文, 繁體中文, Español, Français, Deutsch,
  Русский, עברית, العربية, 日本語, 한국어). Each locale is a real static route (/ja/,
  /ar/docs/usage/, …) generated at build time with the correct lang/dir, translated copy,
  hreflang alternates, and a header language switcher. Right-to-left locales get logical-property
  layout; state diagrams stay left-to-right because their labels are English identifiers. The
  technical documents remain English with a localized notice.