[ajianaz]

Bug Fix: uteke v0.1.0 empty results compatibility

Problem

Uteke v0.1.0 changed the empty results JSON format:

Version	Empty Results Format
v0.0.13	[] (bare array)
v0.1.0	{"message":"No memories above similarity threshold","results":[],"threshold":0.3,"total":0}

Cora's parser only handled bare []. On empty results from v0.1.0, it would silently swallow and return 0 memories (not a crash, but misleading — looked like recall was broken).

Fix

Extracted parse_recall_json() function that handles all formats:

1. Bare array (non-empty): [{"memory":{"content":"..."},"score":0.x}]
2. Wrapped object with results: {"results":[{"memory":{"content":"..."},...}]}
3. Wrapped object empty: {"message":"...","results":[],"threshold":0.3}
4. Invalid JSON: returns empty Vec

Tests Added (6 new)

test_parse_recall_json_nonempty_array      ✅
test_parse_recall_json_multiple_results    ✅
test_parse_recall_json_empty_wrapped_v010  ✅
test_parse_recall_json_empty_bare_array    ✅
test_parse_recall_json_wrapped_with_results ✅
test_parse_recall_json_invalid             ✅

Verification Matrix

Uteke Version	recall --json	remember --tags	--namespace	Empty Format	Cora Compatible
v0.0.13	✅ --json	✅	✅ after subcommand	[]	✅
v0.1.0	✅ --json	✅	✅ global + subcommand	{"results":[]}	✅ (this PR)

All 523 tests pass. Clippy clean.