diff --git a/Gemfile b/Gemfile
index 9bae0aa..41837b3 100644
--- a/Gemfile
+++ b/Gemfile
@@ -61,6 +61,9 @@ group :development, :test do
 
   # Omakase Ruby styling [https://github.com/rails/rubocop-rails-omakase/]
   gem "rubocop-rails-omakase", require: false
+
+  # Parallel test runner [https://github.com/grosser/parallel_tests]
+  gem "parallel_tests", require: false
 end
 
 group :development do
diff --git a/Gemfile.lock b/Gemfile.lock
index 67ecaf8..5b61267 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -84,7 +84,7 @@ GEM
     benchmark (0.5.0)
     bigdecimal (4.0.1)
     bindex (0.8.1)
-    bootsnap (1.21.1)
+    bootsnap (1.23.0)
       msgpack (~> 1.2)
     brakeman (8.0.2)
       racc
@@ -120,6 +120,9 @@ GEM
     docile (1.4.1)
     dotenv (3.2.0)
     drb (2.2.3)
+    dry-configurable (1.3.0)
+      dry-core (~> 1.1)
+      zeitwerk (~> 2.6)
     dry-core (1.2.0)
       concurrent-ruby (~> 1.0)
       logger
@@ -130,7 +133,7 @@ GEM
       concurrent-ruby (~> 1.0)
       dry-core (~> 1.1)
       zeitwerk (~> 2.6)
-    dry-types (1.9.0)
+    dry-types (1.9.1)
       bigdecimal (>= 3.0)
       concurrent-ruby (~> 1.0)
       dry-core (~> 1.0)
@@ -148,8 +151,9 @@ GEM
       raabro (~> 1.4)
     globalid (1.3.0)
       activesupport (>= 6.1)
-    grape (2.4.0)
-      activesupport (>= 6.1)
+    grape (3.1.1)
+      activesupport (>= 7.1)
+      dry-configurable
       dry-types (>= 1.1)
       mustermann-grape (~> 1.1.0)
       rack (>= 2)
@@ -165,8 +169,9 @@ GEM
       activesupport (>= 6.0.0)
       railties (>= 6.0.0)
     io-console (0.8.2)
-    irb (1.16.0)
+    irb (1.17.0)
       pp (>= 0.6.0)
+      prism (>= 1.3.0)
       rdoc (>= 4.0.0)
       reline (>= 0.4.2)
     jbuilder (2.14.1)
@@ -208,7 +213,7 @@ GEM
       ruby2_keywords (~> 0.0.1)
     mustermann-grape (1.1.0)
       mustermann (>= 1.0.0)
-    net-imap (0.6.2)
+    net-imap (0.6.3)
       date
       net-protocol
     net-pop (0.1.2)
@@ -223,12 +228,14 @@ GEM
       net-protocol
     net-ssh (7.3.0)
     nio4r (2.7.5)
-    nokogiri (1.19.0-x86_64-linux-gnu)
+    nokogiri (1.19.1-x86_64-linux-gnu)
       racc (~> 1.4)
     ostruct (0.6.3)
     pagy (8.6.3)
     parallel (1.27.0)
-    parser (3.3.10.1)
+    parallel_tests (5.6.0)
+      parallel
+    parser (3.3.10.2)
       ast (~> 2.4.1)
       racc
     pp (0.6.3)
@@ -247,7 +254,7 @@ GEM
       nio4r (~> 2.0)
     raabro (1.4.0)
     racc (1.8.1)
-    rack (3.2.4)
+    rack (3.2.5)
     rack-session (2.1.1)
       base64 (>= 0.1.0)
       rack (>= 3.0.0)
@@ -287,7 +294,7 @@ GEM
       zeitwerk (~> 2.6)
     rainbow (3.1.1)
     rake (13.3.1)
-    rdoc (7.1.0)
+    rdoc (7.2.0)
       erb
       psych (>= 4.0.0)
       tsort
@@ -304,7 +311,7 @@ GEM
     rswag-ui (2.17.0)
       actionpack (>= 5.2, < 8.2)
       railties (>= 5.2, < 8.2)
-    rubocop (1.84.0)
+    rubocop (1.84.2)
       json (~> 2.3)
       language_server-protocol (~> 3.17.0.2)
       lint_roller (~> 1.1.0)
@@ -339,7 +346,7 @@ GEM
     ruby2_keywords (0.0.5)
     rubyzip (3.2.2)
     securerandom (0.4.1)
-    selenium-webdriver (4.40.0)
+    selenium-webdriver (4.41.0)
       base64 (~> 0.2)
       logger (~> 1.4)
       rexml (~> 3.2, >= 3.2.5)
@@ -360,7 +367,7 @@ GEM
       activejob (>= 7.2)
       activerecord (>= 7.2)
       railties (>= 7.2)
-    solid_queue (1.3.1)
+    solid_queue (1.3.2)
       activejob (>= 7.1)
       activerecord (>= 7.1)
       concurrent-ruby (>= 1.3.1)
@@ -379,7 +386,7 @@ GEM
       railties (>= 6.0.0)
     stringio (3.2.0)
     thor (1.5.0)
-    thruster (0.1.17-x86_64-linux)
+    thruster (0.1.18-x86_64-linux)
     timeout (0.6.0)
     tsort (0.2.0)
     turbo-rails (2.0.23)
@@ -404,7 +411,7 @@ GEM
     websocket-extensions (0.1.5)
     xpath (3.2.0)
       nokogiri (~> 1.8)
-    zeitwerk (2.7.4)
+    zeitwerk (2.7.5)
 
 PLATFORMS
   x86_64-linux-gnu
@@ -425,6 +432,7 @@ DEPENDENCIES
   jbuilder
   kamal
   pagy (~> 8.0)
+  parallel_tests
   propshaft
   puma (>= 5.0)
   rails (~> 8.1.2)
@@ -464,7 +472,7 @@ CHECKSUMS
   benchmark (0.5.0) sha256=465df122341aedcb81a2a24b4d3bd19b6c67c1530713fd533f3ff034e419236c
   bigdecimal (4.0.1) sha256=8b07d3d065a9f921c80ceaea7c9d4ae596697295b584c296fe599dd0ad01c4a7
   bindex (0.8.1) sha256=7b1ecc9dc539ed8bccfc8cb4d2732046227b09d6f37582ff12e50a5047ceb17e
-  bootsnap (1.21.1) sha256=9373acfe732da35846623c337d3481af8ce77c7b3a927fb50e9aa92b46dbc4c4
+  bootsnap (1.23.0) sha256=c1254f458d58558b58be0f8eb8f6eec2821456785b7cdd1e16248e2020d3f214
   brakeman (8.0.2) sha256=7b02065ce8b1de93949cefd3f2ad78e8eb370e644b95c8556a32a912a782426a
   builder (3.3.0) sha256=497918d2f9dca528fdca4b88d84e4ef4387256d984b8154e9d5d3fe5a9c8835f
   bundler-audit (0.9.3) sha256=81c8766c71e47d0d28a0f98c7eed028539f21a6ea3cd8f685eb6f42333c9b4e9
@@ -480,10 +488,11 @@ CHECKSUMS
   docile (1.4.1) sha256=96159be799bfa73cdb721b840e9802126e4e03dfc26863db73647204c727f21e
   dotenv (3.2.0) sha256=e375b83121ea7ca4ce20f214740076129ab8514cd81378161f11c03853fe619d
   drb (2.2.3) sha256=0b00d6fdb50995fe4a45dea13663493c841112e4068656854646f418fda13373
+  dry-configurable (1.3.0) sha256=882d862858567fc1210d2549d4c090f34370fc1bb7c5c1933de3fe792e18afa8
   dry-core (1.2.0) sha256=0cc5a7da88df397f153947eeeae42e876e999c1e30900f3c536fb173854e96a1
   dry-inflector (1.3.1) sha256=7fb0c2bb04f67638f25c52e7ba39ab435d922a3a5c3cd196120f63accb682dcc
   dry-logic (1.6.0) sha256=da6fedbc0f90fc41f9b0cc7e6f05f5d529d1efaef6c8dcc8e0733f685745cea2
-  dry-types (1.9.0) sha256=7b656fe0a78d2432500ae1f29fefd6762f5a032ca7000e4f36bc111453d45d4d
+  dry-types (1.9.1) sha256=baebeecdb9f8395d6c9d227b62011279440943e3ef2468fe8ccc1ba11467f178
   ed25519 (1.4.0) sha256=16e97f5198689a154247169f3453ef4cfd3f7a47481fde0ae33206cdfdcac506
   erb (6.0.1) sha256=28ecdd99c5472aebd5674d6061e3c6b0a45c049578b071e5a52c2a7f13c197e5
   erubi (1.13.1) sha256=a082103b0885dbc5ecf1172fede897f9ebdb745a4b97a5e8dc63953db1ee4ad9
@@ -491,13 +500,13 @@ CHECKSUMS
   ffi (1.17.3-x86_64-linux-gnu) sha256=3746b01f677aae7b16dc1acb7cb3cc17b3e35bdae7676a3f568153fb0e2c887f
   fugit (1.12.1) sha256=5898f478ede9b415f0804e42b8f3fd53f814bd85eebffceebdbc34e1107aaf68
   globalid (1.3.0) sha256=05c639ad6eb4594522a0b07983022f04aa7254626ab69445a0e493aa3786ff11
-  grape (2.4.0) sha256=3d59673e80f11d49ba86270b78344e5348dc057b318c2bbc1c01f3532f9b6aec
+  grape (3.1.1) sha256=774f16782d917a90e69de0499dfaab571e5ad967569ac066a2b0b918af12de69
   htmlentities (4.4.2) sha256=bbafbdf69f2eca9262be4efef7e43e6a1de54c95eb600f26984f71d2fe96c5c3
   i18n (1.14.8) sha256=285778639134865c5e0f6269e0b818256017e8cde89993fdfcbfb64d088824a5
   image_processing (1.14.0) sha256=754cc169c9c262980889bec6bfd325ed1dafad34f85242b5a07b60af004742fb
   importmap-rails (2.2.3) sha256=7101be2a4dc97cf1558fb8f573a718404c5f6bcfe94f304bf1f39e444feeb16a
   io-console (0.8.2) sha256=d6e3ae7a7cc7574f4b8893b4fca2162e57a825b223a177b7afa236c5ef9814cc
-  irb (1.16.0) sha256=2abe56c9ac947cdcb2f150572904ba798c1e93c890c256f8429981a7675b0806
+  irb (1.17.0) sha256=168c4ddb93d8a361a045c41d92b2952c7a118fa73f23fe14e55609eb7a863aae
   jbuilder (2.14.1) sha256=4eb26376ff60ef100cb4fd6fd7533cd271f9998327e86adf20fd8c0e69fabb42
   json (2.18.1) sha256=fe112755501b8d0466b5ada6cf50c8c3f41e897fa128ac5d263ec09eedc9f986
   kamal (2.10.1) sha256=53b7ecb4c33dd83b1aedfc7aacd1c059f835993258a552d70d584c6ce32b6340
@@ -514,7 +523,7 @@ CHECKSUMS
   msgpack (1.8.0) sha256=e64ce0212000d016809f5048b48eb3a65ffb169db22238fb4b72472fecb2d732
   mustermann (3.0.4) sha256=85fadcb6b3c6493a8b511b42426f904b7f27b282835502233dd154daab13aa22
   mustermann-grape (1.1.0) sha256=8d258a986004c8f01ce4c023c0b037c168a9ed889cf5778068ad54398fa458c5
-  net-imap (0.6.2) sha256=08caacad486853c61676cca0c0c47df93db02abc4a8239a8b67eb0981428acc6
+  net-imap (0.6.3) sha256=9bab75f876596d09ee7bf911a291da478e0cd6badc54dfb82874855ccc82f2ad
   net-pop (0.1.2) sha256=848b4e982013c15b2f0382792268763b748cce91c9e91e36b0f27ed26420dff3
   net-protocol (0.2.2) sha256=aa73e0cba6a125369de9837b8d8ef82a61849360eba0521900e2c3713aa162a8
   net-scp (4.1.0) sha256=a99b0b92a1e5d360b0de4ffbf2dc0c91531502d3d4f56c28b0139a7c093d1a5d
@@ -522,11 +531,12 @@ CHECKSUMS
   net-smtp (0.5.1) sha256=ed96a0af63c524fceb4b29b0d352195c30d82dd916a42f03c62a3a70e5b70736
   net-ssh (7.3.0) sha256=172076c4b30ce56fb25a03961b0c4da14e1246426401b0f89cba1a3b54bf3ef0
   nio4r (2.7.5) sha256=6c90168e48fb5f8e768419c93abb94ba2b892a1d0602cb06eef16d8b7df1dca1
-  nokogiri (1.19.0-x86_64-linux-gnu) sha256=f482b95c713d60031d48c44ce14562f8d2ce31e3a9e8dd0ccb131e9e5a68b58c
+  nokogiri (1.19.1-x86_64-linux-gnu) sha256=1a4902842a186b4f901078e692d12257678e6133858d0566152fe29cdb98456a
   ostruct (0.6.3) sha256=95a2ed4a4bd1d190784e666b47b2d3f078e4a9efda2fccf18f84ddc6538ed912
   pagy (8.6.3) sha256=537b2ee3119f237dd6c4a0d0a35c67a77b9d91ebb9d4f85e31407c2686774fb2
   parallel (1.27.0) sha256=4ac151e1806b755fb4e2dc2332cbf0e54f2e24ba821ff2d3dcf86bf6dc4ae130
-  parser (3.3.10.1) sha256=06f6a725d2cd91e5e7f2b7c32ba143631e1f7c8ae2fb918fc4cebec187e6a688
+  parallel_tests (5.6.0) sha256=b2d7af382d1c0289daba65308d9143b3ad82d817d500c0ad1b4bde468beb13af
+  parser (3.3.10.2) sha256=6f60c84aa4bdcedb6d1a2434b738fe8a8136807b6adc8f7f53b97da9bc4e9357
   pp (0.6.3) sha256=2951d514450b93ccfeb1df7d021cae0da16e0a7f95ee1e2273719669d0ab9df6
   prettyprint (0.2.0) sha256=2bc9e15581a94742064a3cc8b0fb9d45aae3d03a1baa6ef80922627a0766f193
   prism (1.9.0) sha256=7b530c6a9f92c24300014919c9dcbc055bf4cdf51ec30aed099b06cd6674ef85
@@ -536,7 +546,7 @@ CHECKSUMS
   puma (7.2.0) sha256=bf8ef4ab514a4e6d4554cb4326b2004eba5036ae05cf765cfe51aba9706a72a8
   raabro (1.4.0) sha256=d4fa9ff5172391edb92b242eed8be802d1934b1464061ae5e70d80962c5da882
   racc (1.8.1) sha256=4a7f6929691dbec8b5209a0b373bc2614882b55fc5d2e447a21aaa691303d62f
-  rack (3.2.4) sha256=5d74b6f75082a643f43c1e76b419c40f0e5527fcfee1e669ac1e6b73c0ccb6f6
+  rack (3.2.5) sha256=4cbd0974c0b79f7a139b4812004a62e4c60b145cba76422e288ee670601ed6d3
   rack-session (2.1.1) sha256=0b6dc07dea7e4b583f58a48e8b806d4c9f1c6c9214ebc202ec94562cbea2e4e9
   rack-test (2.2.0) sha256=005a36692c306ac0b4a9350355ee080fd09ddef1148a5f8b2ac636c720f5c463
   rackup (2.3.1) sha256=6c79c26753778e90983761d677a48937ee3192b3ffef6bc963c0950f94688868
@@ -546,13 +556,13 @@ CHECKSUMS
   railties (8.1.2) sha256=1289ece76b4f7668fc46d07e55cc992b5b8751f2ad85548b7da351b8c59f8055
   rainbow (3.1.1) sha256=039491aa3a89f42efa1d6dec2fc4e62ede96eb6acd95e52f1ad581182b79bc6a
   rake (13.3.1) sha256=8c9e89d09f66a26a01264e7e3480ec0607f0c497a861ef16063604b1b08eb19c
-  rdoc (7.1.0) sha256=494899df0706c178596ca6e1d50f1b7eb285a9b2aae715be5abd742734f17363
+  rdoc (7.2.0) sha256=8650f76cd4009c3b54955eb5d7e3a075c60a57276766ebf36f9085e8c9f23192
   regexp_parser (2.11.3) sha256=ca13f381a173b7a93450e53459075c9b76a10433caadcb2f1180f2c741fc55a4
   reline (0.6.3) sha256=1198b04973565b36ec0f11542ab3f5cfeeec34823f4e54cebde90968092b1835
   rexml (3.4.4) sha256=19e0a2c3425dfbf2d4fc1189747bdb2f849b6c5e74180401b15734bc97b5d142
   roo (3.0.0) sha256=6fdd7a9158d657c69768b4168754ff2110cc21fdc01a1bec1010820cb05c91b1
   rswag-ui (2.17.0) sha256=5f707b9b5e8171ddf9f519f6e401e79e419bd1d07387508603e76124f2443212
-  rubocop (1.84.0) sha256=88dec310153bb685a879f5a7cdb601f6287b8f0ee675d9dc63a17c7204c4190a
+  rubocop (1.84.2) sha256=5692cea54168f3dc8cb79a6fe95c5424b7ea893c707ad7a4307b0585e88dbf5f
   rubocop-ast (1.49.0) sha256=49c3676d3123a0923d333e20c6c2dbaaae2d2287b475273fddee0c61da9f71fd
   rubocop-performance (1.26.1) sha256=cd19b936ff196df85829d264b522fd4f98b6c89ad271fa52744a8c11b8f71834
   rubocop-rails (2.34.3) sha256=10d37989024865ecda8199f311f3faca990143fbac967de943f88aca11eb9ad2
@@ -562,19 +572,19 @@ CHECKSUMS
   ruby2_keywords (0.0.5) sha256=ffd13740c573b7301cf7a2e61fc857b2a8e3d3aff32545d6f8300d8bae10e3ef
   rubyzip (3.2.2) sha256=c0ed99385f0625415c8f05bcae33fe649ed2952894a95ff8b08f26ca57ea5b3c
   securerandom (0.4.1) sha256=cc5193d414a4341b6e225f0cb4446aceca8e50d5e1888743fac16987638ea0b1
-  selenium-webdriver (4.40.0) sha256=16ef7aa9853c1d4b9d52eac45aafa916e3934c5c83cb4facb03f250adfd15e5b
+  selenium-webdriver (4.41.0) sha256=cdc1173cd55cf186022cea83156cc2d0bec06d337e039b02ad25d94e41bedd22
   simplecov (0.22.0) sha256=fe2622c7834ff23b98066bb0a854284b2729a569ac659f82621fc22ef36213a5
   simplecov-html (0.13.2) sha256=bd0b8e54e7c2d7685927e8d6286466359b6f16b18cb0df47b508e8d73c777246
   simplecov_json_formatter (0.1.4) sha256=529418fbe8de1713ac2b2d612aa3daa56d316975d307244399fa4838c601b428
   solid_cable (3.0.12) sha256=a168a54731a455d5627af48d8441ea3b554b8c1f6e6cd6074109de493e6b0460
   solid_cache (1.0.10) sha256=bc05a2fb3ac78a6f43cbb5946679cf9db67dd30d22939ededc385cb93e120d41
-  solid_queue (1.3.1) sha256=d9580111180c339804ff1a810a7768f69f5dc694d31e86cf1535ff2cd7a87428
+  solid_queue (1.3.2) sha256=44a53047be4255f616ff13fa5d35980e7b3eee6e31d957eadb88fbe8e0db4509
   sqlite3 (2.9.0-x86_64-linux-gnu) sha256=72fff9bd750070ba3af695511ba5f0e0a2d8a9206f84869640b3e99dfaf3d5a5
   sshkit (1.25.0) sha256=c8c6543cdb60f91f1d277306d585dd11b6a064cb44eab0972827e4311ff96744
   stimulus-rails (1.3.4) sha256=765676ffa1f33af64ce026d26b48e8ffb2e0b94e0f50e9119e11d6107d67cb06
   stringio (3.2.0) sha256=c37cb2e58b4ffbd33fe5cd948c05934af997b36e0b6ca6fdf43afa234cf222e1
   thor (1.5.0) sha256=e3a9e55fe857e44859ce104a84675ab6e8cd59c650a49106a05f55f136425e73
-  thruster (0.1.17-x86_64-linux) sha256=77b8f335075bd4ece7631dc84a19a710a1e6e7102cbce147b165b45851bdfcd3
+  thruster (0.1.18-x86_64-linux) sha256=0ec1ff5f12289c1ac10cf8e28ce6b5266f4e73416b34a664b79d037c7d955c40
   timeout (0.6.0) sha256=6d722ad619f96ee383a0c557ec6eb8c4ecb08af3af62098a0be5057bf00de1af
   tsort (0.2.0) sha256=9650a793f6859a43b6641671278f79cfead60ac714148aabe4e3f0060480089f
   turbo-rails (2.0.23) sha256=ee0d90733aafff056cf51ff11e803d65e43cae258cc55f6492020ec1f9f9315f
@@ -588,7 +598,7 @@ CHECKSUMS
   websocket-driver (0.8.0) sha256=ed0dba4b943c22f17f9a734817e808bc84cdce6a7e22045f5315aa57676d4962
   websocket-extensions (0.1.5) sha256=1c6ba63092cda343eb53fc657110c71c754c56484aad42578495227d717a8241
   xpath (3.2.0) sha256=6dfda79d91bb3b949b947ecc5919f042ef2f399b904013eb3ef6d20dd3a4082e
-  zeitwerk (2.7.4) sha256=2bef90f356bdafe9a6c2bd32bcd804f83a4f9b8bc27f3600fff051eb3edcec8b
+  zeitwerk (2.7.5) sha256=d8da92128c09ea6ec62c949011b00ed4a20242b255293dd66bf41545398f73dd
 
 BUNDLED WITH
   4.0.4
diff --git a/config/database.yml b/config/database.yml
index de774ff..a98a9e8 100644
--- a/config/database.yml
+++ b/config/database.yml
@@ -23,7 +23,7 @@ development:
 # Do not set this db to the same as development or production.
 test:
   <<: *default
-  database: storage/test.sqlite3
+  database: storage/test<%= ENV["TEST_ENV_NUMBER"] %>.sqlite3
 
 # Store production database in the storage/ directory, which by default
 # is mounted as a persistent Docker volume in config/deploy.yml.