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feat: mount discovered module UI in a minimal Ekklesia browser host
Phase 6C pass 2. Every link in the module UI chain existed except the one
that closes it: a module could be authored, built, validated, published at a
browser URL, and loaded by a generic loader — and nothing in Ekklesia did any
of it. There was no browser application at all.

Two pieces were missing. A browser could not discover what to mount, and it
must not work that out for itself.

GET /api/v1/module-ui is the inventory: per publishable module, its id and
version, the server-produced artifact URL, the server-produced root of the
module's own API, and the subset of that module's declared permissions the
caller holds. Five fields, each because building a ModuleUiHostContext needs
it — no filesystem paths, and no name/icon/folder/order, because navigation
metadata is a design that does not exist yet. Its module set is the ADR 0025
publication registry rather than a rescan, so the inventory and the artifact
route cannot disagree. It requires a new Core permission, core.modules.ui.read
(baseline authenticated), because it is precisely the enumeration the anonymous
artifact route deliberately withholds.

Both URLs are server-produced. moduleUiArtifactUrl already existed;
moduleApiBaseUrl is now exported and moduleRoutePath builds on it, so each URL
shape has exactly one author. Without it the shell would hardcode
/api/v1/modules/<id> — the prefix ADR 0022 forbids a module UI from spelling,
reappearing in the host instead.

surfaces/shell (@ekklesia/shell) is the repository's first surface: a small
React application built to static files by its own esbuild script. It resolves
the principal, fetches the inventory, builds the host context entirely from
server-derived data, and hands the artifact URL to @ekklesia/module-ui-host.
One frame per selection — keyed by module identity — defeats the stale-load
race; the host owns the container, the loading state, and every failure, so a
broken module costs its own panel rather than the shell.

The shell statically imports no module, and both levels are checked: no source
import may name a module, and the emitted bundle must contain exactly one
dynamic import (the loader's) with no module id, no /api/v1/modules, no eval,
and no blob URL. Permission hints come from Core's own evaluator and stay
presentation-only — the end-to-end test has a UI holding no grant call its API
anyway and still receive 403.

Surfaces may now depend only on browser-safe shared roles; @ekklesia/contracts
is deliberately excluded, since its barrel pulls Drizzle's types and Node's
globals into the browser — the hole ADR 0024 closed one layer down.

Not the Dashboard: no navigation, grouping, icons, ordering, design system, or
routing. The selector is a list of module ids.

Co-Authored-By: Claude Opus 5 <[email protected]>
2026-08-22 08:55:44 -05:00

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3.4 KiB
Markdown

# Architecture decision records
ADRs capture durable choices that affect more than one package or phase.
- Filenames use a four-digit sequence followed by a short kebab-case title.
- Status is `Proposed`, `Accepted`, `Superseded`, or `Rejected`.
- Accepted ADRs are immutable except for status and cross-reference corrections.
- A changed decision receives a new ADR that links to and supersedes the old one.
## Index
- [0001: Four-layer platform boundary](0001-four-layer-platform-boundary.md) — Accepted
- [0002: pnpm workspace and strict TypeScript](0002-pnpm-workspace-and-typescript.md) — Accepted
- [0003: Development infrastructure](0003-development-infrastructure.md) — Accepted
- [0004: Replace unmaintained MinIO baseline](0004-replace-unmaintained-minio.md) — Accepted
- [0005: Static module manifests and atomic discovery](0005-static-module-manifests.md) — Superseded
- [0006: Versioned capabilities and compiled module runtime](0006-versioned-capabilities-and-compiled-module-runtime.md) — Accepted
- [0007: Module-owned Drizzle schemas and table isolation](0007-module-owned-drizzle-schemas.md) — Accepted
- [0008: Module-owned migration contracts and offline validation](0008-module-owned-migration-contracts.md) — Accepted
- [0009: Transactional module migration execution](0009-transactional-module-migrations.md) — Accepted
- [0010: Core identity architecture and Better Auth adoption](0010-core-identity-and-better-auth-adoption.md) — Accepted
- [0011: Identity HTTP transport and public enrollment policy](0011-identity-http-transport-and-public-enrollment.md) — Accepted
- [0012: Production-equivalent identity origin/CSRF protection under test](0012-identity-origin-csrf-protection-under-test.md) — Accepted
- [0013: Core authorization, permission registry, and platform-owner bootstrap](0013-core-authorization-and-owner-bootstrap.md) — Accepted
- [0014: Module permission declarations and platform permission registry](0014-module-permission-declarations-and-platform-registry.md) — Accepted
- [0015: Static module HTTP routing and production runtime lifecycle](0015-static-module-http-routing-and-runtime-lifecycle.md) — Accepted
- [0016: Module database access](0016-module-database-access.md) — Accepted
- [0017: Public request perimeter hardening — client address, signup gating, body limits, timeouts](0017-public-request-perimeter-hardening.md) — Accepted
- [0018: Identity session resolution, canonical public origins, and PostgreSQL transport policy](0018-identity-session-resolution-and-database-transport.md) — Accepted
- [0019: Durable authorization history and grant management](0019-durable-authorization-history-and-grant-management.md) — Accepted
- [0020: Module runtime and migration execution hardening](0020-module-runtime-and-migration-execution-hardening.md) — Accepted
- [0021: Modules as independently hostable products](0021-modules-as-hostable-products.md) — Accepted
- [0022: Module UI authoring model and host contract](0022-module-ui-authoring-and-host-contract.md) — Accepted
- [0023: Module UI build pipeline](0023-module-ui-build-pipeline.md) — Accepted
- [0024: Browser-safe module UI SDK and the generic host loader](0024-browser-safe-ui-sdk-and-host-loader.md) — Accepted
- [0025: Trusted module UI asset publication](0025-trusted-module-ui-asset-publication.md) — Accepted
- [0026: The minimal Ekklesia module UI host](0026-minimal-ekklesia-module-ui-host.md) — Accepted