Release wild 1.3.0 #95

Ship wild 1.3.0: everything merged since 1.2.0 (#89–#92) plus #93.

Scope

• Graph-first HTML report: visible merged edges, a details panel with per-symbol before/after diffs, top-to-bottom reading order with "start here", collapsible modules, Show/Hide unchanged, Fit to view / Fit width, and zoom at the cursor.
• Analysis: callers and subclasses outside the diff, inherits edges, schema 2.1 (source, diff, summary, context files).
• CLI: wild diff REF / wild diff --staged REF; unknown revisions are usage errors.
• Opt-in AI summaries via BYOK Relay (--llm claude|gpt|gemini, tiers such as claude:fast). Relay settings and keys never come from .env.

Release

• Version 1.3.0 in setup.py and diffgraph/__init__.py; the CHANGELOG has [1.3.0].
• The latest tag cli-v1.2.0-7e9e20230841 plus release:minor gives 1.3.0.

Known follow-up

• The VS Code extension (wildest-vscode-ext) validates an older v2.0 artifact shape and rejects schema 2.1 artifacts. It needs updating separately.