[ebigunso]

The harness tells the library which notion is the character (pairs with library #174, prospective Task_1).

• The library's facade constructors now take the character's own notion id, and a store refuses to reopen as a different self. The harness passes it everywhere it builds the facade.
• The id is the scenario's authored character entity where one exists, through the same UUID-v5 mapping every notion uses, so the self is the stored notion. Otherwise it is a stable per-namespace id in a separate self domain, which adds no notion and no cue.
• Restart, reattach and cleanup carry the same id, so the library's store check never trips by accident.
• Run and measurement headers record self_notion_ids for each executed namespace.

In the library the identity reads only for the obligation direction report and the store check, so recall does not change. A full capture against the same library through a minimal constructor patch shows zero unaccounted differences across 3.07 million values in 11 raw pairs, beyond the new header field. Tests: 374 workspace and 6 Qdrant lifecycle. evals-reviewer APPROVED with no findings.

Builds only against library #174 and later.

Stacked on #83.

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