995c0ba8eb5fd835cba8e6d290c2430945dfe3c8
The merge from main added user-facing surface the pre-merge inventory had listed as planned. Mark them documented-as-shipped: show tables / relationships / indexes + show relationship/index <name> (V5/V5a), help [<command>] + help types (H3), compound-primary-key foreign-key references (T3, ADR-0043), and friendlier parse-error messaging (H1a). Refresh the test count to 2193 and note requirements.md now uses a [/] partial marker (trust the code, not the marker).
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