Remove the conversation archive and tracked links

[renkelvin]

Before. Settings › Agent › Access had four more checkboxes per Agent: "Can save conversations", "Can search conversations", "Can see your tracked links" and "Can keep your tracked links". With those turned on, an Agent on the standing worldlet MCP server could save conversations from outside Worldlet into world.sqlite and search them (the world_conversations tool). It could also keep a table of posts and their links (the world_links tool). Both were built for one migration, and nothing uses them now.

After. Both features are gone. Settings no longer shows the four checkboxes, and the two tools are no longer offered or routed. Rows already in world.sqlite (agent_conversations and state.tracked-links) stay where they are, so backups and restores keep them. Nothing new is written to them. This is the same approach taken when Orders were retired.

What was removed:

• Contracts and Core: contracts/conversations.ts, contracts/tracked-links.ts, core/agent/conversations.ts and core/agent/tracked-links.ts.
  • In core/agent/grants.ts: the Grant builders, the audit entries for them, and their targets in OWN_GRANT_TARGETS.
  • In turn-trust.ts: their untrusted-tool entries.
• Gateway: both entries in core/tools/services.json, and their operations in core/tools/gateway.ts.
• Host: agent-runtime/conversations.ts and agent-runtime/tracked-links.ts.
  • Their wiring in agent-runtime/index.ts (the standing-tool handlers, the grant/ungrant agentAccess operations, and the per-Agent state) and in world-tool-bridge.ts.
  • The agentAccess interface methods in agent-access.ts and host/services.ts.
  • Fox's refusals for the two tools.
  • The archive's save and search code in store/ledger.ts. A backup still leaves out the old agent_conversations_search index.
• UI: the four toggles in ui/companion/agent-access.ts, and their audit lines.
• Docs:
  • The two sections and the Access paragraphs in core/agent/GRANTS.md are gone.
  • core/items/STORAGE.md now lists both tables as retired, with their rows kept.
  • A few unrelated uses of the phrase "conversation archive" (meaning Fox's own history) now say "conversation history", so that git grep finds only the storage notes for the retired data.
• Checks:
  • Removed scripts/conversations-host-check.ts and scripts/tracked-links-host-check.ts, and their entries in test:core.
  • Updated agent-grants-check, world-actions-equivalence-check and your-agent-ui-check.

Checks run locally:

• npm run check:pr and npm test pass.
• your-agent-ui-check passes.
• test:ui:quick timed out on this 4-core container under its parallel load. The checks that failed there (fox-chat-fold-check, startup-setup-check, attention-actions-check) pass when run one at a time.

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