Completes the migration. The embedded per-depth tree (internal/zddc/defaults/)
is now the sole source of the shipped baseline; defaults.zddc.yaml is deleted.
- EmbeddedDefaults() assembles the tree (no yaml). show-defaults now emits a
.zddc.zip (per-depth, "*" wildcard members) via EmbeddedDefaultsZip() —
operators redirect it to <ROOT>/.zddc.zip (or any directory) and edit/add/
delete individual members.
- Dropped EmbeddedDefaultsBytes; reworked the dumpable test to validate the
emitted zip; removed the now-redundant tree-vs-yaml oracle (the Layer-2
matrix is the ongoing behavioral guarantee, and it stays green).
- Swept stale "defaults.zddc.yaml" comment references to the embedded tree.
- GRAMMAR.md §1/§6 updated: .zddc.zip is a policy bundle mountable at ANY
directory (subtree mount; inherit:false + acl.inherit:false = island); the
shipped baseline is the embedded bundle at the root.
Net of the 6-phase migration: policy is per-depth .zddc files in a .zddc.zip
that an operator can drop at any level to override the cascade; the engine
(Assemble + the unchanged walker) enforces it. Full Go suite + matrix green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The executable contract for the shipped defaults (internal/zddc/defaults.zddc.yaml):
~38 cells asserting who-can-do-what across the canonical project folders, routed
through the real decider (InternalDecider: cascade + WORM mask + active-admin
bypass) evaluated at the target's logical parent — the same decision the server
makes. Locks the document-control model so a change to the defaults OR the
engine that resolves them can't silently shift access. Storage-agnostic: if the
defaults later move into a project-root .zddc.zip of per-depth .zddc files, the
test is unchanged (it asserts effective policy, not where the bytes live).
Covers: no-create-at-project-root; DC/team/observer per-peer grants (working/
staging/reviewing/incoming/ssr); team rwc on mdl/rsk; archive WORM (DC
create-once, no write/delete; others read); elevated-admin bypass vs un-elevated
no-bypass; anonymous denied. Complements Layer 1 (engine-follows-policy):
policy.TestInternalDecider_CascadeScenarios + zddc/{acl,roles,worm}_test +
policy/parity_test.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
