index: incremental re-run reports 0 symbols / 0 files; MCP index_status shows total_symbols 0

[ajianaz]

What

Second cora index run (immediately after a successful one) reports Indexed 0 symbols from 0 files (155 skipped). MCP tool cora_index_status also returns total_symbols: 0 despite db_size 2.2 MB and a prior successful run of 710 symbols / 50 files.

Suspect

Incremental refresh path clears or fails to read prior index state, or project-root detection differs between runs.

Env

cora 0.13.0, project codecoradev/uteke, DB /opt/data/.codecora/cora-code/cora.db

Expected

Re-index should be idempotent (no-op or updated counts), and index_status should report the stored symbol count.