Add JavaTemplated pipeline for java.base API docs

[alexmmiller]

Summary

• Adds JavaTemplated/: a self-contained pipeline that generates HTML API docs for OpenJDK 17's java.base module - Dokka (with the kdoc-to-json plugin from Dokka-plugin-kdoc2json/) produces JSON, then a small Pebble-based renderer (pebble-renderer/) turns that JSON into a mirrored HTML tree with working inter-page links.
• Includes a required workaround for a genuine, still-open upstream Dokka bug (kotlin/dokka#2171) that otherwise crashes a full java.base run with a StackOverflowError in Dokka's own {@inheritDoc} resolver - 9 file pairs (18 of ~2,750 source files) are excluded from analysis. bisect_inheritdoc.py, the binary-search tool that found them, is included for future maintenance if a version bump reintroduces the crash elsewhere.
• See JavaTemplated/README.md for the full pipeline walkthrough and prerequisites (a JDK 17 install, distinct from whatever this machine's default JDK is).

Test plan

• Dokka-plugin-kdoc2json/kdoc-to-json builds and publishes to Maven local (./gradlew clean publishToMavenLocal)
• dokka-java-base-docs generates JSON for the full java.base module (all ~2,750 source files, minus the 18 documented exclusions) via ./gradlew dokkaGenerateHtml with 0 failures
• pebble-renderer renders all 22,209 resulting JSON files to HTML via ./gradlew run with 0 failures
• Rendered HTML spot-checked for correct structure/signatures/links (internal .json cross-references rewritten to .html, both in template url fields and in doc-text {@link}-derived <a> tags)
• Reviewer sanity-checks a sampled page or two from html-output/

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