diff --git a/docs/changelog-claude.md b/docs/changelog-claude.md
index 37ce791..656b7f4 100644
--- a/docs/changelog-claude.md
+++ b/docs/changelog-claude.md
@@ -7,6 +7,9 @@ This file documents all changes made to this project via Claude Code.
 ### Added
 - Added internal technical reference document `docs/technical-notes-codex.md` with repository structure, application architecture, processing flow, parser system rules, ticketing/Autotask constraints, feedback attachment notes, deployment/build workflow, and operational attention points
 
+### Changed
+- Changed `docs/technical-notes-codex.md` language from Dutch to English to align with project language rules for documentation
+
 ### Fixed
 - Fixed Autotask tickets and internal tickets not being linked to missed runs by calling `link_open_internal_tickets_to_run` after creating missed JobRun records in `_ensure_missed_runs_for_job` (both weekly and monthly schedules), ensuring missed runs now receive the same ticket propagation as email-based runs
 - Fixed checkboxes being automatically re-selected after delete actions on Inbox and Run Checks pages by adding `autocomplete="off"` attribute to all checkboxes, preventing browser from restoring previous checkbox states after page reload
diff --git a/docs/technical-notes-codex.md b/docs/technical-notes-codex.md
index a7dbd2a..172222c 100644
--- a/docs/technical-notes-codex.md
+++ b/docs/technical-notes-codex.md
@@ -1,57 +1,57 @@
-# Technische Notities (intern)
+# Technical Notes (Internal)
 
-Laatste update: 2026-02-13
+Last updated: 2026-02-13
 
-## Doel
-Interne technische momentopname van de repository `backupchecks` voor snelle onboarding, troubleshooting en wijzigingsimpact.
+## Purpose
+Internal technical snapshot of the `backupchecks` repository for faster onboarding, troubleshooting, and change impact analysis.
 
-## Repository-overzicht
-- Applicatie: Flask webapp met SQLAlchemy + Flask-Migrate.
-- Runtime: containerized (Docker), deploy via Docker Compose stack.
-- Primaire map met broncode: `containers/backupchecks/src`.
-- Project bevat daarnaast veel functionele/documentatiebestanden in `docs/` en meerdere TODO-roadmaps op rootniveau.
+## Repository Overview
+- Application: Flask web app with SQLAlchemy and Flask-Migrate.
+- Runtime: Containerized (Docker), deployed via Docker Compose stack.
+- Primary source code location: `containers/backupchecks/src`.
+- The project also contains extensive functional documentation in `docs/` and multiple roadmap TODO files at repository root.
 
-## Belangrijkste structuur
-- `containers/backupchecks/Dockerfile`: Python 3.12-slim image, `gunicorn` start met `backend.app:create_app()`.
-- `containers/backupchecks/requirements.txt`: Flask stack + Postgres driver + reporting libs (`reportlab`, `Markdown`).
-- `containers/backupchecks/src/backend/app`: backend domeinlogica, routes, parsers, modellen, migraties.
-- `containers/backupchecks/src/templates`: Jinja templates voor auth/main/documentation pagina's.
+## Main Structure
+- `containers/backupchecks/Dockerfile`: Python 3.12-slim image, starts `gunicorn` with `backend.app:create_app()`.
+- `containers/backupchecks/requirements.txt`: Flask stack + PostgreSQL driver + reporting libraries (`reportlab`, `Markdown`).
+- `containers/backupchecks/src/backend/app`: backend domain logic, routes, parsers, models, migrations.
+- `containers/backupchecks/src/templates`: Jinja templates for auth/main/documentation pages.
 - `containers/backupchecks/src/static`: CSS, images, favicon.
-- `deploy/backupchecks-stack.yml`: compose stack met `backupchecks`, `postgres`, `adminer`.
-- `build-and-push.sh`: release/test buildscript met versiebump, tags en docker push.
-- `docs/`: functioneel ontwerp, changelog, migraties, API-notities.
+- `deploy/backupchecks-stack.yml`: compose stack with `backupchecks`, `postgres`, `adminer`.
+- `build-and-push.sh`: release/test build script with version bumping, tags, and image push.
+- `docs/`: functional design, changelogs, migration notes, API notes.
 
-## Applicatie-architectuur (huidige observatie)
-- Factory patroon: `create_app()` in `containers/backupchecks/src/backend/app/__init__.py`.
+## Application Architecture (Current Observation)
+- Factory pattern: `create_app()` in `containers/backupchecks/src/backend/app/__init__.py`.
 - Blueprints:
-  - `auth_bp` voor authenticatie.
-  - `main_bp` voor kernfunctionaliteit.
-  - `doc_bp` voor interne documentatiepagina's.
-- DB-init bij startup:
+  - `auth_bp` for authentication.
+  - `main_bp` for core functionality.
+  - `doc_bp` for internal documentation pages.
+- Database initialization at startup:
   - `db.create_all()`
   - `run_migrations()`
-- Achtergrondtaak:
-  - `start_auto_importer(app)` start automatische mailimport thread.
+- Background task:
+  - `start_auto_importer(app)` starts the automatic mail importer thread.
 - Health endpoint:
-  - `GET /health` geeft `{ "status": "ok" }`.
+  - `GET /health` returns `{ "status": "ok" }`.
 
-## Functionele verwerkingsflow
+## Functional Processing Flow
 - Import:
-  - Mail wordt opgehaald via Microsoft Graph API.
+  - Email is fetched via Microsoft Graph API.
 - Parse:
-  - Parser-selectie via registry + parserimplementaties per leverancier.
+  - Parser selection through registry + software-specific parser implementations.
 - Approve:
-  - Nieuwe jobs landen eerst in Inbox voor eerste klantkoppeling.
+  - New jobs first appear in Inbox for initial customer assignment.
 - Auto-process:
-  - Vervolgmails voor bekende jobs maken automatisch `JobRun` records.
+  - Subsequent emails for known jobs automatically create `JobRun` records.
 - Monitor:
-  - Runs verschijnen in Daily Jobs en Run Checks.
+  - Runs appear in Daily Jobs and Run Checks.
 - Review:
-  - Handmatige review verwijdert items uit ongereviewde werklijst.
+  - Manual review removes items from the unreviewed operational queue.
 
-## Configuratie en runtime
-- Config wordt uit environment opgebouwd in `containers/backupchecks/src/backend/app/config.py`.
-- Belangrijke variabelen:
+## Configuration and Runtime
+- Config is built from environment variables in `containers/backupchecks/src/backend/app/config.py`.
+- Important variables:
   - `APP_SECRET_KEY`
   - `APP_ENV`
   - `APP_PORT`
@@ -60,106 +60,106 @@ Interne technische momentopname van de repository `backupchecks` voor snelle onb
   - `POSTGRES_PASSWORD`
   - `DB_HOST`
   - `DB_PORT`
-- DB URI patroon:
+- Database URI pattern:
   - `postgresql+psycopg2://<user>:<pass>@<host>:<port>/<db>`
 - Default timezone in config: `Europe/Amsterdam`.
 
-## Datamodel (globaal)
-Bestand: `containers/backupchecks/src/backend/app/models.py`
-- Auth/gebruikers:
-  - `User` met role(s), actieve rol in sessie.
-- Systeeminstellingen:
-  - `SystemSettings` met Graph/mailinstellingen, importinstellingen, UI-timezone, dashboard-policy, sandbox vlag.
-  - Autotask configuratie en cachevelden zijn aanwezig.
+## Data Model (High-level)
+File: `containers/backupchecks/src/backend/app/models.py`
+- Auth/users:
+  - `User` with role(s), active role in session.
+- System settings:
+  - `SystemSettings` with Graph/mail settings, import settings, UI timezone, dashboard policy, sandbox flag.
+  - Autotask configuration and cache fields are present.
 - Logging:
   - `AuditLog` (legacy alias `AdminLog`).
-- Domein:
-  - `Customer`, `Job`, `Override` en veel run/ticket-gerelateerde logica in andere modules/routes.
-  - Kernentiteiten uit systeemkennis: `JobRun`, `MailMessage`, ticket/remark-koppeltabellen, feedback-tabellen.
+- Domain:
+  - `Customer`, `Job`, `Override`, plus extensive run/ticket logic in other modules/routes.
+  - Core entities from system knowledge include `JobRun`, `MailMessage`, ticket/remark link tables, and feedback tables.
 
-## Parserarchitectuur
-- Map: `containers/backupchecks/src/backend/app/parsers/`
-- Twee lagen:
+## Parser Architecture
+- Folder: `containers/backupchecks/src/backend/app/parsers/`
+- Two layers:
   - `registry.py`:
-    - matching/documentatie/zichtbaarheid op `/parsers`.
-    - voorbeelden moeten generiek blijven (geen klantnamen).
-  - parserbestanden (`veeam.py`, `synology.py`, etc.):
-    - echte detectie en parsing.
-    - leveren gestructureerde output: software, type, jobnaam, status, objecten.
-- Praktijkregel:
-  - patronen uitbreiden door toe te voegen, niet te vervangen (backward compatibility).
+    - matching/documentation/visibility on `/parsers`.
+    - examples must stay generic (no customer names).
+  - parser files (`veeam.py`, `synology.py`, etc.):
+    - actual detection and parsing logic.
+    - return structured output: software, type, job name, status, objects.
+- Practical rule:
+  - extend patterns by adding, not replacing (backward compatibility).
 
-## Ticketing en Autotask (kritische regels)
-- Twee ticketsporen:
-  - interne tickets (`tickets`, `ticket_scopes`, `ticket_job_runs`).
-  - Autotask-ticketgegevens op `job_runs` + synchronisatie met intern ticket.
-- Propagatie naar nieuwe runs gebeurt via `link_open_internal_tickets_to_run`.
-- Deze propagatie moet worden aangeroepen bij:
-  - email-gebaseerde runcreatie (importflow),
-  - gemiste-runs generatie in `routes_run_checks.py`.
-- Weergavelogica:
-  - link-gebaseerd via expliciete JOINs.
-  - resolved tickets (`resolved_at` gezet) mogen niet meer aan nieuwe runs gekoppeld worden.
-  - historische links blijven zichtbaar voor audit trail.
-- Anti-patterns (niet gebruiken):
-  - resolved-logica op basis van datumvergelijkingen zoals `resolved_at >= run_date`.
+## Ticketing and Autotask (Critical Rules)
+- Two ticket tracks:
+  - internal tickets (`tickets`, `ticket_scopes`, `ticket_job_runs`).
+  - Autotask ticket fields on `job_runs` + synchronization with internal ticket records.
+- Propagation to new runs is handled by `link_open_internal_tickets_to_run`.
+- This propagation must be called for:
+  - email-based run creation (import flow),
+  - missed-run generation in `routes_run_checks.py`.
+- Display logic:
+  - link-based via explicit JOIN queries.
+  - resolved tickets (`resolved_at` set) must no longer be linked to new runs.
+  - historical links remain visible for audit trail.
+- Anti-patterns (do not use):
+  - date-based resolved logic like `resolved_at >= run_date`.
 
-## UI en UX-notities
-- Navbar is fixed-top met dynamische padding-correctie in de main container.
-- Status-badges gebruiken semantische kleurcodes (success/warning/error/override/reviewed).
-- Ticket-copy knop heeft drievoudige fallback:
+## UI and UX Notes
+- Navbar is fixed-top with dynamic main container padding correction.
+- Status badges use semantic color coding (success/warning/error/override/reviewed).
+- Ticket copy button uses a three-level fallback:
   - Clipboard API,
   - `execCommand('copy')`,
   - `prompt()` fallback.
 
-## Feedbackmodule met screenshots
-- Modellen: `FeedbackItem`, `FeedbackVote`, `FeedbackReply`, `FeedbackAttachment`.
-- Bijlagen:
-  - meerdere uploads, typevalidatie, limiet per bestand, opslag in database (BYTEA).
-- Delete-strategie:
-  - soft delete als standaard,
-  - permanente delete alleen admin en alleen na soft delete.
+## Feedback Module with Screenshots
+- Models: `FeedbackItem`, `FeedbackVote`, `FeedbackReply`, `FeedbackAttachment`.
+- Attachments:
+  - multiple uploads, type validation, per-file size limits, storage in database (BYTEA).
+- Delete strategy:
+  - soft delete by default,
+  - permanent delete only for admins and only after soft delete.
 
-## Deployment en operations
-- Stackbestand exposeert:
-  - app op `8080`
-  - adminer op `8081`
-- Postgres persistent volume:
+## Deployment and Operations
+- Stack exposes:
+  - app on `8080`
+  - adminer on `8081`
+- PostgreSQL persistent volume:
   - `/docker/appdata/backupchecks/backupchecks-postgres:/var/lib/postgresql/data`
-- In `deploy/backupchecks-stack.yml` staan onderaan ook voorbeeld `.env` variabelen opgenomen.
+- `deploy/backupchecks-stack.yml` also contains example `.env` variables at the bottom.
 
-## Build/release-flow
-Bestand: `build-and-push.sh`
-- Bump opties:
+## Build/Release Flow
+File: `build-and-push.sh`
+- Bump options:
   - `1` patch, `2` minor, `3` major, `t` test.
-- Release-build:
+- Release build:
   - update `version.txt`
   - commit + tag + push
-  - docker push van `:<version>`, `:dev`, `:latest`
-- Test-build:
-  - alleen `:dev`
-  - geen commit/tag.
-- Services worden ontdekt onder `containers/*` met Dockerfile-per-service.
+  - docker push of `:<version>`, `:dev`, `:latest`
+- Test build:
+  - only `:dev`
+  - no commit/tag.
+- Services are discovered under `containers/*` with Dockerfile-per-service.
 
-## Technische observaties / aandachtspunten
-- `README.md` is momenteel leeg; snelle instapinformatie ontbreekt.
-- `LICENSE` is momenteel leeg.
-- `docs/architecture.md` is momenteel leeg.
-- `deploy/backupchecks-stack.yml` bevat hardcoded voorbeeldwaarden (`Changeme`), risico op foutief gebruik zonder secrets-management.
-- App voert DB-init + migraties uit tijdens startup; bij grotere schemawijzigingen kan dit opstarttijd/robustness beïnvloeden.
-- Er is veel functionaliteit rondom parsering en ticketing; regressierisico bij routewijzigingen is hoog zonder gerichte tests.
-- Voor Autotask update-calls moet `description` expliciet behouden blijven bij updates (voorkomt ongewenste NULL-overschrijving).
-- Security-hygiëne blijft belangrijk:
-  - geen klantnamen in parservoorbeelden/broncode,
-  - geen hardcoded credentials.
+## Technical Observations / Attention Points
+- `README.md` is currently empty; quick-start entry context is missing.
+- `LICENSE` is currently empty.
+- `docs/architecture.md` is currently empty.
+- `deploy/backupchecks-stack.yml` contains hardcoded example values (`Changeme`), with risk if used without proper secrets management.
+- The app performs DB initialization + migrations at startup; for larger schema changes this can impact startup time/robustness.
+- There is significant parser and ticketing complexity; route changes carry regression risk without targeted testing.
+- For Autotask update calls, the `description` field must be explicitly preserved to prevent unintended NULL overwrite.
+- Security hygiene remains important:
+  - no customer names in parser examples/source,
+  - no hardcoded credentials.
 
-## Snelle referenties
+## Quick References
 - App entrypoint: `containers/backupchecks/src/backend/app/main.py`
 - App factory: `containers/backupchecks/src/backend/app/__init__.py`
 - Config: `containers/backupchecks/src/backend/app/config.py`
-- Modellen: `containers/backupchecks/src/backend/app/models.py`
+- Models: `containers/backupchecks/src/backend/app/models.py`
 - Parsers: `containers/backupchecks/src/backend/app/parsers/registry.py`
-- Ticketing utils: `containers/backupchecks/src/backend/app/ticketing_utils.py`
-- Run checks routes: `containers/backupchecks/src/backend/app/main/routes_run_checks.py`
+- Ticketing utilities: `containers/backupchecks/src/backend/app/ticketing_utils.py`
+- Run Checks routes: `containers/backupchecks/src/backend/app/main/routes_run_checks.py`
 - Compose stack: `deploy/backupchecks-stack.yml`
-- Buildscript: `build-and-push.sh`
+- Build script: `build-and-push.sh`