v0.2.1 — SessionStart config injection + delegation

Highlights

• New SessionStart hook (hooks/session-context.sh): resolves the obsidian-chronicle config once per session start and serves two consumers from the single result.
  • Main session — injects the resolved vault paths + a rule to delegate all vault work (read/search included, not just writes) to the obsidian-chronicle:obsidian-vault agent, via additionalContext.
  • obsidian-vault agent — subagents don't receive SessionStart context, so the hook also writes the resolved config to a cwd-keyed cache file that the agent reads instead of re-running resolve-config.sh.
• Fires on startup / resume / clear / compact, so the injected snapshot also refreshes after compaction.
• Fail-safe: recursion guard for the claude -p summarizer child, silent exit + stale-cache removal when no vault is configured, never blocks session start.
• agents/obsidian-vault.md reads the cache first (falls back to the resolver).
• /obsidian-chronicle:setup clears the cache after writing config.

Full changelog: v0.2.0...v0.2.1