build: add canonical product catalog and docs drift checks

Derive package, tool-family, provider, setup-client, schema-version, and CLI facts from the runtime contract sources into a deterministic checked-in catalog.

Add non-mutating generated-file checks, exact TypeDoc regenerate-and-compare validation, caller-visible documentation fact checks, and CI enforcement through docs:check.

Cover command-router parity, source-derived catalog values, deliberate documentation drift, and stale generated artifacts while preserving runtime behavior.

docs/api/functions/cli.createCli.html

@@ -22,7 +22,7 @@ Analysis commands acquire and close their own sessions; bare <code>mcp</code> an
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 <h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">Cli</span><span class="tsd-signature-symbol">&lt;</span><span class="tsd-signature-symbol">{}</span><span class="tsd-signature-symbol">&gt;</span></h4><aside class="tsd-sources">
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-<li>Defined in <a href="https://github.com/morluto/rea/blob/main/src/cli.ts#L39">src/cli.ts:39</a></li></ul></aside></div></li></ul></section></div>
+<li>Defined in <a href="https://github.com/morluto/rea/blob/main/src/cli.ts#L40">src/cli.ts:40</a></li></ul></aside></div></li></ul></section></div>
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