Mark Phase 7 tasks (T193-T210) as complete in tasks.md

All 18 Phase 7 polish tasks have been implemented and committed
(commit 5675784). This update aligns the tasks.md documentation with
the actual implementation status.

Implementation completed:
- T193-T194: Comprehensive error logging and structured JSON logging
- T195: Complete deployment guide (docs/deployment.md)
- T196-T199: Security hardening (HSTS, CSRF, cookies, XSS)
- T200-T201: Performance tests for concurrency and dashboard load
- T202-T207: Code quality, validation, and verification
- T208-T209: Health check endpoint and environment validation
- T210: Development dependencies (requirements-dev.txt)

Resolves constitution Principle V compliance (Documentation as Code).
Project status: All in-scope phases complete (1-5, 7). Phase 6 deferred.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

specs/001-build-an-application/tasks.md

@@ -320,24 +320,24 @@
 
 **Purpose**: Improvements that affect multiple user stories
 
-- [ ] T193 [P] Add comprehensive error logging in all routes using Python logging module
-- [ ] T194 [P] Configure structured logging in app/__init__.py (JSON format)
-- [ ] T195 [P] Create deployment guide in docs/deployment.md (ClamAV setup, nginx reverse proxy, HTTPS)
-- [ ] T196 [P] Add HSTS headers in production config for HTTPS enforcement (FR-064)
-- [ ] T197 [P] Verify CSRF protection on all POST routes (Flask-WTF)
-- [ ] T198 [P] Verify session cookie security flags (HttpOnly, Secure, SameSite)
-- [ ] T199 [P] Add input sanitization for all user inputs (XSS prevention)
-- [ ] T200 [P] Add integration test for 100 concurrent submissions (SC-012) in tests/integration/test_performance.py
-- [ ] T201 [P] Verify dashboard loads 1000 items in <3s (SC-008) in tests/integration/test_performance.py
-- [ ] T202 [P] Run quickstart.md validation (manual testing of developer setup guide)
-- [ ] T203 [P] Add README.md with project overview and quick start link
-- [ ] T204 [P] Code cleanup and consistency check (PEP 8 compliance)
-- [ ] T205 [P] Run flake8 linting on all Python files
-- [ ] T206 [P] Run black formatting on all Python files
-- [ ] T207 [P] Verify no hardcoded secrets in code (API keys, passwords)
-- [ ] T208 [P] Add health check endpoint /health for monitoring
-- [ ] T209 [P] Add environment variable validation on startup
-- [ ] T210 [P] Create requirements-dev.txt for development dependencies
+- [X] T193 [P] Add comprehensive error logging in all routes using Python logging module
+- [X] T194 [P] Configure structured logging in app/__init__.py (JSON format)
+- [X] T195 [P] Create deployment guide in docs/deployment.md (ClamAV setup, nginx reverse proxy, HTTPS)
+- [X] T196 [P] Add HSTS headers in production config for HTTPS enforcement (FR-064)
+- [X] T197 [P] Verify CSRF protection on all POST routes (Flask-WTF)
+- [X] T198 [P] Verify session cookie security flags (HttpOnly, Secure, SameSite)
+- [X] T199 [P] Add input sanitization for all user inputs (XSS prevention)
+- [X] T200 [P] Add integration test for 100 concurrent submissions (SC-012) in tests/integration/test_performance.py
+- [X] T201 [P] Verify dashboard loads 1000 items in <3s (SC-008) in tests/integration/test_performance.py
+- [X] T202 [P] Run quickstart.md validation (manual testing of developer setup guide)
+- [X] T203 [P] Add README.md with project overview and quick start link
+- [X] T204 [P] Code cleanup and consistency check (PEP 8 compliance)
+- [X] T205 [P] Run flake8 linting on all Python files
+- [X] T206 [P] Run black formatting on all Python files
+- [X] T207 [P] Verify no hardcoded secrets in code (API keys, passwords)
+- [X] T208 [P] Add health check endpoint /health for monitoring
+- [X] T209 [P] Add environment variable validation on startup
+- [X] T210 [P] Create requirements-dev.txt for development dependencies
 
 ---