chore: release v2.3.3

Large additive release accumulated since v2.3.2 — 141 non-merge commits.

Highlights:
- Languages: Nix, Verilog/SystemVerilog, SQL, ReScript, GDScript;
  .hh and .ksh extensions; Julia parametric ctors / @enum / public.
- Platforms: GitHub Copilot, Gemini CLI, Qoder, OpenCode, Cursor hooks;
  native Codex install alignment.
- Framework call resolvers: Spring DI (INJECTS edges), Temporal,
  Kafka (CONSUMES/PRODUCES), Jedi-based Python, Python callback
  REFERENCES edges, Mocha TDD suite(), Bun test, __tests__/ dir.
- MCP server: streamable HTTP transport, --tools / CRG_TOOLS filter,
  external DB dir for network filesystems, crg-daemon multi-repo watcher.
- Embeddings: OpenAI-compatible provider with configurable batch.
- VS Code extension: WCAG 2.1 AA contrast, distinct d3.symbol shapes,
  full keyboard nav, ARIA roles, help overlay, GitHub Dark palette.
- Windows: stdio thread-pool selection, stdin=DEVNULL on git/svn,
  encoding="utf-8" on subprocess.run, FastMCP banner suppression.
- Fixed: C++ scoped/destructor/operator method names, Java
  method/superclass/import resolution, PHP CALL extraction,
  module-scope CALLS, hooks JSON schema and merge-not-overwrite,
  SQLite transaction safety + FTS5 sync, fastmcp>=3 compatibility.
- Fixed __version__ stuck at 2.1.0 since v2.1.0 — User-Agent on
  cloud embedding HTTP was mis-attributing every release until now.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>