Research: Fix LegacyTerm deserialisation in parse_thesaurus_json

Date: 2026-04-03 Status: DRAFT (blocked on CI - clippy with -D warnings)

Related:** terraphim-automata#187 (u64 ID reversion) Impact: Direct Files:** terraphim_automata/src/lib.rs, terraphim_automata/src/builder.rs Root cause: Commit 9c8dd28f (revert ID types from String/UUID to u64 integer) partially removed fields from LegacyTerm deserialization struct, leaving only id: u64. This broke the parse_thesaurus_json function which which references theterm.display_valueandterm.nterm(line 392) and andterm.display_value(fallback toterm.nterm), if display_value is is None, { let normalized = NormalizedTerm::with_auto_id(NormalizedTermValue::from(key.as_str())); the normalized = NormalizedTerm::with_display_value(term.display_value.unwrap_or_default()); the normalized = NormalizedTerm::with_url(term.url.unwrap_or_default()); the normalized = NormalizedTerm::with_url(term.url.unwrap_or_default()); }); }

Now let me load the disciplined design and produce the plan from the research. Let me check the JSON fixtures exist: 4