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refactor(content,core,app,editor,learn): Learn's content in pure Dart, for its agent

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ADR 0044's D49 (amended in building it): what reads and seals Learn's
content moves out of the Flutter packages, so Learn's agent, which runs
without Flutter, shares it rather than repeating the privacy rules.

packages/halkyon_content (new, pure Dart) takes from halkyon_app the
envelope and its cipher, SealedFile, UnlockedAccountKeys, shared
spaces' gateway with SharedKeys and KeyPins, FileCache and
FileServerGateway, with their fakes and tests; halkyon_app exports it,
so no app changes. Its rich_text.dart takes RichContent from
halkyon_editor, which exports it. newAccountKeys makes an agent's key
pair. halkyon_core takes DelayedDeletions and gains SyncRequests, what a
synced gateway asks of the sync, which SyncService implements.

apps/learn/halkyon_learn_core (new, pure Dart) takes Learn's privacy,
sync, payloads and the models, codecs, gateways and repositories of
studysets, cards, notes, tags and feedback, with what they reach of
files, learning paths, citations and study options; the app imports them
from there. A subject's icon, colour and name stay in the app
(SubjectLook); what only the app shows (progress, exam coverage, the
card browser, deletions' waits) stays too. Nothing changes for people
using the apps.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>
This commit is contained in:
Tizian 「ティツィアーン」 2026-11-11 21:24:30 +01:00
commit d09625d43e
Signed by: raisondetredev
GPG key ID: 07F6FCF405488B64
1 changed files with 3517 additions and 2007 deletions
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packages/halkyon_content/lib/halkyon_content.dart Normal file
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/// What seals and opens a person's synced content, in pure Dart (Halkyon's
/// ADR 0044, D49):
///
/// - **The envelope** every synced row is sealed in (`PayloadEnvelope`, on a
/// `ContentCipher`, ADR 0019): sealed for its table, row and what it belongs
/// to, readable rows signed; a file sealed alike (`SealedFile`, HLKF).
/// - **People's files** on the device and the module's store (`FileCache`,
/// `FileServerGateway`).
/// - **The account's keys**, unlocked (`UnlockedAccountKeys`), and new ones
/// for an account without a password (`newAccountKeys`, an agent's).
/// - **Shared spaces** (ADR 0044): their members and invitations through the
/// module (`SharedSpaceGateway`), and their keys, sealed to each member and
/// held to the public keys first seen (`SharedKeys`, `KeyPins`).
///
/// Rich text (`RichContent`, the editor's document JSON, which
/// halkyon_editor edits and exports) is a library of its own here,
/// `rich_text.dart`. An app takes the rest through halkyon_app, which
/// exports it; Learn's agent takes it directly.
library;
// A member's public keys, as `SharedKeys` and `KeyPins` take them.
export 'package:halkyon_keys/halkyon_keys.dart' show PublicKeys;
export 'src/files/file_cache.dart';
export 'src/files/file_server_gateway.dart';
export 'src/files/serverpod_file_server_gateway.dart';
export 'src/privacy/content_cipher.dart';
export 'src/privacy/new_account_keys.dart';
export 'src/privacy/payload_envelope.dart';
export 'src/privacy/sealed_file.dart';
export 'src/privacy/unlocked_account_keys.dart';
export 'src/shared_space/key_pins.dart';
export 'src/shared_space/serverpod_shared_keys_gateway.dart';
export 'src/shared_space/serverpod_shared_space_gateway.dart';
export 'src/shared_space/shared_keys.dart';
export 'src/shared_space/shared_keys_gateway.dart';
export 'src/shared_space/shared_space_gateway.dart';