Update tool usage log with new vault search entry

- Added a new entry to `tool_usage.log` documenting a `vault_search` action tagged as "test," enhancing the tracking of tool interactions.
- Updated `vault_index.db` to reflect changes in the binary data structure.

This commit improves the granularity of tool usage tracking within the Obsidian Vault, facilitating better oversight of user interactions and system functionality.

Author: ManintheCrowds

ObsidianVault/.cursor_context/tool_usage.log

@@ -17,3 +17,4 @@
 {"ts": 1773715468.5732434, "tool": "session_save", "args": {"summary": "Testing Quality & Smoke closeout; 5 phases done; pending_tasks H3/AT3 done; next wave in TESTING_QUA", "notes_touched": ".cursor/state/handoff_latest.md, .cursor/state/pending_tasks.md, docs/TESTING_QUALITY_SMOKE_CONCRETE_PLANS.md, .cursor/state/decision-log.md, .cursor/state/daily/2026-03-16.md", "decisions": "H3 done (campaign_kb fixtures); AT3 done (list_ingested E2E); AT3b added for Playwright when Gradio exists; next wave: H4, AT3b, pre-commit cleanup", "generated_files": ""}}
 {"ts": 1773721984.499396, "tool": "session_save", "args": {"summary": "CM-3 Action Parity closeout: daggr_run_workflow, WatchTower discovery, campaign_kb_ingest; critic 0.", "notes_touched": ".cursor/state/pending_tasks.md, .cursor/state/decision-log.md, .cursor/state/daily/2026-03-16.md, .cursor/state/handoff_latest.md, local-proto/scripts/daggr_mcp.py", "decisions": "CM-3 done; inputs_json reserved for future use; critic fixes applied"}}
 {"ts": 1773940554.1532147, "tool": "session_save", "args": {"summary": "Analyzed two AI-trends videos ($690B squeeze, Disposable Software); wrote learnings doc with Harness", "notes_touched": "docs/learnings/2026-03-19-video-690b-disposable-software.md, frontier-ops-kb/operations/failure-models.md, frontier-ops-kb/RESOURCES.md, local-proto/docs/AI_TRENDS_MCP.md, docs/DISPOSABLE_SOFTWARE_RIS...", "decisions": "Disposable Software Risk as new frontier-ops failure mode; agent guidance in DISPOSABLE_SOFTWARE_RISK.md; refactor-reuse gets Disposable Software Check step", "generated_files": "docs/DISPOSABLE_SOFTWARE_RISK.md"}}
+{"ts": 1773962506.430456, "tool": "vault_search", "args": {"tag": "test"}}