chore: release v0.3.6

[github-actions]

🤖 New release

• quipu: 0.3.5 -> 0.3.6 (✓ API compatible changes)

Changelog

[0.3.6] - 2026-07-21

Added

• (governance) Enforce action-boundary policies on the write path(a0bddd7)
• (governance) Fail closed on require-approval/escalate at the write gate(ea5f667)

Changed

• (governance) Split guard tests into guard_tests.rs(30d87c2)

Documentation

• (retract) Document on_orphan and the identity-accounting response; test refuse at the tool level(a22530b)
• Correct 6 reference-doc drifts and remove 3 dead pub items; pin the tool count(8e02316)

Fixed

• (reason) --reactive must refuse loudly without its feature, and the feature must compile(0ba069d)
• (retract) A bare-string object for an IRI edge is refused, not a silent no-op(466634c)
• (retract) A bare IRI-shaped string errors even when there is no fact to compare, and document the {iri} contract(9a25f16)

Miscellaneous

• Bring repo into compliance with current stable rustfmt + clippy(bb8f0e0)
• (docs) Blank lines around headings/fences in homelab example(8cac704)

Perf

• (search) Scoped /search drives from the selective pattern, and every store handler runs off the reactor(694d570)
• (search) Embed the query OUTSIDE the store lock so concurrent searches do not serialize(ffa75a6)

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