amico vault/note: mount-aware status/resolve, union query, routed note route

[aarontrowbridge]

What

Stacked on #125 (B3) — base branch is b3-bookkeeping-verbs; merge after it.

Closes the single-vault gap in the B3 spine verbs: vault_query.ts's vaultDir() was hardcoded to armonissima, and no verb knew the Armonia mount stack existed. Per depth-1 spec §7.3 (retrieval tools) + W-3 (routed librarian writes) and the approved vault-CLI spec's canonical mount semantics:

• src/mounts.ts (new) — the mount-stack resolver: markers + mounts.toml order/kind/writable overrides, canonical kind precedence (restricted 3 < team 4), rescue rule, discovery-order unlisted append. Twin of the extension's substrate/mount_store.ts (PR Bootstrap parity: full Armonia mount-stack at session start (discovery, grants, splice, typed memory) #130) — headers cross-reference; unify-later follow-up named. Env seam for the bundle-exec test boundary: $AMICO_VAULTS_ROOT / $AMICO_MOUNTS_TOML ($AMICO_VAULT_DIR still wins, forcing the single-mount back-compat path).
• vault status --json — field-compatible with the bash amico-vault status --json ({ok, mounts:[{id,path,kind,writable,last_sync,warnings}], error}, drift warnings with manifest-wins, git log -1 --format=%cr). Note: matches the bash envelope exactly, so no top-level verb/subcommand — unlike the other amico verbs, by design.
• vault resolve <relpath> — first-hit across read precedence.
• vault query — union over all mounts in precedence order with mount provenance on every hit; same-relpath collision → higher-precedence mount wins; --mount <id> restricts.
• note route (new subcommand) — routed generic note writes by intent: first writable mount of the intent kind, else personal + route_intent: <kind> frontmatter stamp (never silently drop, never write a ro mount). --type experiment is rejected with a pointer to note write (schema-complete experiment notes stay note write's job). B3's note write/bump-best are byte-for-byte untouched.

Verified against the real machine

vault status reproduces this machine's session-start hook mount stack exactly (personal → restricted → team, manifest order); vault resolve STRATEGY.md first-hits armonissima; vault query returns cross-mount hits with provenance.

Testing

pnpm test: 229 passed (baseline 191 — +38 new, zero regressions; all pre-existing B3 suites additions-only). pnpm typecheck clean. New: mounts.test.ts fixture matrix (a)–(i), status/resolve/union-query verb tests, note route pure + bundle tests.

CI: expected red on the pre-existing private-fork binary token issue — unrelated.

🤖 Generated with Claude Code

[jack-champagne]

Closing — already delivered.

aaron/vault-mounts-verbs tip c4ec87b ("feat(note): note route — routed generic note writes by intent + route_intent fallback") is a direct ancestor of main (d03d3c8) and git diff main...aaron/vault-mounts-verbs is empty.

Base was b3-bookkeeping-verbs (see #125), also fully in main.

Note this means #132, which stacked on this branch, has only 8 lines left that aren't in main — retargeting it to main rather than closing it.

cc @aaron — branch preserved.