fix: resolve all CSpell spelling issues

- Fix 'hierar' typo to 'hierarchical' in logging-guide.md
- Fix broken 'Testcon-tainers' ASCII art in e2e-testing.md
- Add legitimate technical terms to project-words.txt:
  - unsubscription, testkey, mocksecret (valid terms)
  - Émojis, spëcial (Unicode test data)
  - Testcontainers, Testcontain (library name and partial)
  - appendonly, Avalonia, chdir, dpkg, epel, EPEL
  - exitcode, htdocs, nameof, rgba, SCRIPTDIR
  - testhost, Testinfra, userspace, viewmodel, webservers

All linters now pass including the new CSpell integration.

Author: josecelano

docs/contributing/logging-guide.md

@@ -1,6 +1,8 @@
 # Structured Logging Guide
 
-This guide explains the structured logging implementation in the Torrust Tracker Deploy project, which uses hierar### JSON Output Format
+This guide explains the structured logging implementation in the Torrust Tracker Deploy project, which uses hierarchical structured logging.
+
+## JSON Output Format
 
 When using `logging::init_json()` or `LogFormat::Json`, logs are output in JSON format suitable for log aggregation:
 

docs/e2e-testing.md

@@ -293,31 +293,31 @@ lxc exec torrust-tracker-vm -- /bin/bash
 The split E2E testing architecture ensures reliable CI while maintaining comprehensive coverage:
 
 ```text
-┌──────────────────────────────────────────────────────────────────┐
-│                        E2E Test Suites                          │
-└─────┬────────────────┬────────────────┬─────────────────────────┘
-      │                │                │
-      │                │                │
-┌─────▼──────┐   ┌─────▼────────┐   ┌───▼──────────────────┐
-│ Provision  │   │Configuration │   │    Full Local        │
-│   Tests    │   │    Tests     │   │      Tests           │
-│            │   │              │   │                      │
-│ LXD VMs    │   │   Docker     │   │ LXD VMs + Docker     │
-│ (CI Safe)  │   │ Containers   │   │ (Local Only)         │
-│            │   │ (CI Safe)    │   │                      │
-└─────┬──────┘   └─────┬────────┘   └───┬──────────────────┘
-      │                │                │
-┌─────▼──────┐   ┌─────▼────────┐   ┌───▼──────────────────┐
-│ OpenTofu/  │   │  Testcon-    │   │ OpenTofu + Ansible   │
-│    LXD     │   │   tainers    │   │    (Full Stack)      │
-│Infrastructure│  │   Docker     │   │                      │
-│   Layer    │   │ Management   │   │                      │
-└────────────┘   └──────────────┘   └──────────────────────┘
-       │                │                        │
-┌──────▼──────┐  ┌──────▼────────┐    ┌─────────▼─────────┐
-│ VM Creation │  │Ansible Playbooks│    │  Complete Stack │
-│ Cloud-init  │  │ Configuration   │    │    Validation   │
-│ Validation  │  │   Validation    │    │                 │
+┌───────────────────────────────────────────────────────────────────┐
+│                        E2E Test Suites                            │
+└─────┬────────────────┬──────────────────┬─────────────────────────┘
+      │                │                  │
+      │                │                  │
+┌─────▼──────┐   ┌─────▼──────────┐   ┌───▼──────────────────┐
+│ Provision  │   │Configuration   │   │    Full Local        │
+│   Tests    │   │    Tests       │   │      Tests           │
+│            │   │                │   │                      │
+│ LXD VMs    │   │   Docker       │   │ LXD VMs + Docker     │
+│ (CI Safe)  │   │ Containers     │   │ (Local Only)         │
+│            │   │ (CI Safe)      │   │                      │
+└─────┬──────┘   └───────┬────────┘   └───┬──────────────────┘
+      │                  │                │
+┌─────▼────────┐   ┌─────▼────────┐   ┌───▼──────────────────┐
+│ OpenTofu/    │   │ Testcontain- │   │ OpenTofu + Ansible   │
+│    LXD       │   │     ers      │   │    (Full Stack)      │
+│Infrastructure│   │   Docker     │   │                      │
+│   Layer      │   │ Management   │   │                      │
+└──────────────┘   └──────────────┘   └──────────────────────┘
+       │                │                         │
+┌──────▼──────┐  ┌──────▼──────────┐    ┌─────────▼─────────┐
+│ VM Creation │  │Ansible Playbooks│    │  Complete Stack   │
+│ Cloud-init  │  │ Configuration   │    │    Validation     │
+│ Validation  │  │   Validation    │    │                   │
 └─────────────┘  └─────────────────┘    └───────────────────┘
 ```
 

project-words.txt

@@ -1,7 +1,10 @@
 AAAAB
+appendonly
 architecting
 autorestart
+Avalonia
 buildx
+chdir
 childlogdir
 clippy
 cloneable
@@ -14,16 +17,22 @@ dearmor
 debootstrap
 distutils
 Dockerfiles
+dpkg
 dtolnay
 EAAAADAQABAAABAQC
 ehthumbs
 elif
+Émojis
 endfor
 endraw
+epel
+EPEL
 eprintln
+exitcode
 getent
 Gossman
 Hostnames
+htdocs
 hugepages
 impls
 journalctl
@@ -36,8 +45,10 @@ lxdbr
 MAAACBA
 maxbytes
 mgmt
+mocksecret
 MVVM
 myenv
+nameof
 newgrp
 newtype
 nistp
@@ -64,17 +75,20 @@ RAII
 Repomix
 reqwest
 resolv
+rgba
 rpcinterface
 runcmd
 RUSTDOCFLAGS
 rustflags
 rustup
+SCRIPTDIR
 secureboot
 serde
 serverurl
 shellcheck
 Silverlight
 smorimoto
+spëcial
 spki
 sshpass
 startretries
@@ -89,8 +103,13 @@ Taplo
 Tera
 terraformrc
 tést
+Testcontain
 testcontainer
 testcontainers
+Testcontainers
+testhost
+Testinfra
+testkey
 testuser
 tfstate
 tfvars
@@ -100,10 +119,14 @@ tmpfiles
 tmpfs
 torrust
 Torrust
+unsubscription
 usermod
+userspace
 usize
 utmp
 vbqajnc
+viewmodel
+webservers
 writeln
 значение
 ключ