## Summary
Fusion’s core runtime now treats PostgreSQL as the authoritative
metadata store without leaving current CLI, dashboard, desktop, or
engine composition roots uncompilable between stack layers. This is the
99-file foundation for the larger cutover: subsequent PRs migrate the
remaining consumers, plugins, and operator surfaces.
## Design decisions
- Runtime store construction fails closed when an asynchronous
PostgreSQL layer is unavailable; SQLite remains readable only at
explicit migration and identity-recovery boundaries.
- Project ownership is enforced across active, archived, workflow,
mission, analytics, and plugin-schema data.
- The small set of cross-package files in this layer are
compatibility-critical call sites required for a green intermediate
commit, not the complete consumer migration.
- Schema migration 0008 remains assigned to session-advisor state from
current `main`; mission lineage idempotency advances to 0009 so neither
invariant can be skipped.
## Validation
- All affected package typechecks pass: Core, Engine, Dashboard, CLI,
and Desktop.
- `pnpm test:gate` passes: 478 tests across the engine gate, PostgreSQL
core gate, and CLI workflow shape.
- The PR changes exactly 99 files.
## Stack
This is the base PR. Engine/dashboard, CLI/desktop/ops, plugins, and
docs/release follow as stacked PRs, each below 100 changed files.
Related: #2105
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* PostgreSQL is now the standard runtime backend, with embedded
PostgreSQL enabled by default.
* Added project-scoped storage for tasks, archives, chat sessions,
missions, knowledge pages, and operational data.
* Improved archived-task search, filtering, pagination, and restoration.
* Added safer plugin schema initialization with validation and project
isolation.
* Added PostgreSQL-backed workflow, mission, validator, and dashboard
capabilities.
* **Bug Fixes**
* Improved startup timeout cancellation and resource cleanup.
* Prevented cross-project data access and phantom reservation cleanup
errors.
* Ensured archived tasks remain read-only and asynchronous writes
complete reliably.
* Retired SQLite opt-out settings with clear startup errors.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Route workflow selections, model lanes, goals, skills, and reliability reads through project-scoped async stores. Recover heartbeat agents parked against an unrelated project model and preserve workflow JSONB patches atomically.
Drops orphaned imports and the never-referenced V4 migration SQL constant
(V4 was inlined into runMigrations). Also drops the unused TypedEventEmitter
helper type and unused destructured values from stores.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
- Change default global directory from ~/.pi/fusion to ~/.fusion
- Add migration logic to copy existing data from old directory to new location
- Update all core packages (store, settings, central-core, central-db) to use new default path
- Update all documentation references from ~/.pi/fusion to ~/.fusion
- Add test for ~/.pi/fusion migration path with updated mock paths
- Include changeset for @gsxdsm/fusion minor version bump
- Rename all pi extension tool registrations from kb_* to fn_* across task, mission, and agent tool families
- Update extension and skill-sync tests plus Fusion skill docs/workflows to assert and document the new fn_* tool names
- Align product-identity strings across core, dashboard, and CLI references, including GitHub import examples, User-Agent headers, and terminal TERM_PROGRAM
- Add a @gsxdsm/fusion minor changeset describing the extension tool-prefix rename
- Switch settings export filename prefix from 'kb' to 'fusion' (e.g. fusion-settings-*.json)
- Switch backup filename prefix from 'kb' to 'fusion' with legacy-safe parsing for existing kb-* backups
- Remove unused ntfy deep-link code and dashboard routing for /project/:id
- Remove dead notifier tests and App test assertions for removed features
- Clean up dashboard command and bin.ts unused variables
- Add changeset for the published package rename
