feat: implement plugin architecture and application settings with Svelte UI

- Added plugin base and loader for backend extensibility
- Implemented application settings management with config persistence
- Created Svelte-based frontend with Dashboard and Settings pages
- Added API routes for plugins, tasks, and settings
- Updated documentation and specifications
- Improved project structure and developer tools

.specify/templates/plan-template.md

@@ -31,10 +31,7 @@
 
 *GATE: Must pass before Phase 0 research. Re-check after Phase 1 design.*
 
-- [ ] **Causal Validity**: Do all planned modules/components have defined Contracts (inputs/outputs/props/events) before implementation logic?
-- [ ] **Immutability**: Are architectural layers and constraints defined in Module/Component Headers?
-- [ ] **Format Compliance**: Does the plan ensure all code will be wrapped in `[DEF]` anchors?
-- [ ] **Belief State**: Is logging planned to follow the `Entry` -> `Validation` -> `Action` -> `Coherence` state transition model?
+[Gates determined based on constitution file]
 
 ## Project Structure
 

.specify/templates/spec-template.md

@@ -95,12 +95,6 @@
 - **FR-006**: System MUST authenticate users via [NEEDS CLARIFICATION: auth method not specified - email/password, SSO, OAuth?]
 - **FR-007**: System MUST retain user data for [NEEDS CLARIFICATION: retention period not specified]
 
-### System Invariants (Constitution Check)
-*Define immutable constraints that will become `@INVARIANT` or `@CONSTRAINT` tags in Module Headers.*
-
-- **INV-001**: [e.g., "No direct database access from UI layer"]
-- **INV-002**: [e.g., "All financial calculations must use Decimal type"]
-
 ### Key Entities *(include if feature involves data)*
 
 - **[Entity 1]**: [What it represents, key attributes without implementation]

.specify/templates/tasks-template.md

@@ -88,14 +88,12 @@ Examples of foundational tasks (adjust based on your project):
 
 ### Implementation for User Story 1
 
-- [ ] T012 [P] [US1] Define [Entity1] Module Header & Contracts in src/models/[entity1].py
-- [ ] T013 [P] [US1] Implement [Entity1] logic satisfying contracts
-- [ ] T014 [P] [US1] Define [Service] Module Header & Contracts in src/services/[service].py
-- [ ] T015 [US1] Implement [Service] logic satisfying contracts (depends on T012)
-- [ ] T016 [US1] Define [endpoint] Contracts & Logic in src/[location]/[file].py
-- [ ] T017 [US1] Define [Component] Header (Props/Events) in frontend/src/components/[Component].svelte
-- [ ] T018 [US1] Implement [Component] logic satisfying contracts
-- [ ] T019 [US1] Verify `[DEF]` syntax and Belief State logging compliance
+- [ ] T012 [P] [US1] Create [Entity1] model in src/models/[entity1].py
+- [ ] T013 [P] [US1] Create [Entity2] model in src/models/[entity2].py
+- [ ] T014 [US1] Implement [Service] in src/services/[service].py (depends on T012, T013)
+- [ ] T015 [US1] Implement [endpoint/feature] in src/[location]/[file].py
+- [ ] T016 [US1] Add validation and error handling
+- [ ] T017 [US1] Add logging for user story 1 operations
 
 **Checkpoint**: At this point, User Story 1 should be fully functional and testable independently
 
@@ -109,16 +107,15 @@ Examples of foundational tasks (adjust based on your project):
 
 ### Tests for User Story 2 (OPTIONAL - only if tests requested) ⚠️
 
-- [ ] T020 [P] [US2] Contract test for [endpoint] in tests/contract/test_[name].py
-- [ ] T021 [P] [US2] Integration test for [user journey] in tests/integration/test_[name].py
+- [ ] T018 [P] [US2] Contract test for [endpoint] in tests/contract/test_[name].py
+- [ ] T019 [P] [US2] Integration test for [user journey] in tests/integration/test_[name].py
 
 ### Implementation for User Story 2
 
-- [ ] T022 [P] [US2] Define [Entity] Module Header & Contracts in src/models/[entity].py
-- [ ] T023 [P] [US2] Implement [Entity] logic satisfying contracts
-- [ ] T024 [US2] Define [Service] Module Header & Contracts in src/services/[service].py
-- [ ] T025 [US2] Implement [Service] logic satisfying contracts
-- [ ] T026 [US2] Define [Component] Header & Logic in frontend/src/components/[Component].svelte
+- [ ] T020 [P] [US2] Create [Entity] model in src/models/[entity].py
+- [ ] T021 [US2] Implement [Service] in src/services/[service].py
+- [ ] T022 [US2] Implement [endpoint/feature] in src/[location]/[file].py
+- [ ] T023 [US2] Integrate with User Story 1 components (if needed)
 
 **Checkpoint**: At this point, User Stories 1 AND 2 should both work independently
 
@@ -132,15 +129,14 @@ Examples of foundational tasks (adjust based on your project):
 
 ### Tests for User Story 3 (OPTIONAL - only if tests requested) ⚠️
 
-- [ ] T027 [P] [US3] Contract test for [endpoint] in tests/contract/test_[name].py
-- [ ] T028 [P] [US3] Integration test for [user journey] in tests/integration/test_[name].py
+- [ ] T024 [P] [US3] Contract test for [endpoint] in tests/contract/test_[name].py
+- [ ] T025 [P] [US3] Integration test for [user journey] in tests/integration/test_[name].py
 
 ### Implementation for User Story 3
 
-- [ ] T029 [P] [US3] Define [Entity] Module Header & Contracts in src/models/[entity].py
-- [ ] T030 [US3] Define [Service] Module Header & Contracts in src/services/[service].py
-- [ ] T031 [US3] Implement logic for [Entity] and [Service] satisfying contracts
-- [ ] T032 [US3] Define [Component] Header & Logic in frontend/src/components/[Component].svelte
+- [ ] T026 [P] [US3] Create [Entity] model in src/models/[entity].py
+- [ ] T027 [US3] Implement [Service] in src/services/[service].py
+- [ ] T028 [US3] Implement [endpoint/feature] in src/[location]/[file].py
 
 **Checkpoint**: All user stories should now be independently functional
 
@@ -183,10 +179,9 @@ Examples of foundational tasks (adjust based on your project):
 ### Within Each User Story
 
 - Tests (if included) MUST be written and FAIL before implementation
-- Module/Component Headers & Contracts BEFORE Implementation (Causal Validity)
 - Models before services
 - Services before endpoints
-- Components before Pages
+- Core implementation before integration
 - Story complete before moving to next priority
 
 ### Parallel Opportunities
@@ -207,9 +202,9 @@ Examples of foundational tasks (adjust based on your project):
 Task: "Contract test for [endpoint] in tests/contract/test_[name].py"
 Task: "Integration test for [user journey] in tests/integration/test_[name].py"
 
-# Launch all contract definitions for User Story 1 together:
-Task: "Define [Entity1] Module Header & Contracts in src/models/[entity1].py"
-Task: "Define [Entity2] Module Header & Contracts in src/models/[entity2].py"
+# Launch all models for User Story 1 together:
+Task: "Create [Entity1] model in src/models/[entity1].py"
+Task: "Create [Entity2] model in src/models/[entity2].py"
 ```
 
 ---