diff --git a/dbal/cpp/src/validation/lua_script_validation.hpp b/dbal/cpp/src/validation/lua_script_validation.hpp
new file mode 100644
index 000000000..52d895f4e
--- /dev/null
+++ b/dbal/cpp/src/validation/lua_script_validation.hpp
@@ -0,0 +1,37 @@
+/**
+ * @file lua_script_validation.hpp
+ * @brief Validation functions for LuaScript entity
+ */
+#ifndef DBAL_LUA_SCRIPT_VALIDATION_HPP
+#define DBAL_LUA_SCRIPT_VALIDATION_HPP
+
+#include <string>
+
+namespace dbal {
+namespace validation {
+
+/**
+ * Validate Lua script name (1-255 characters)
+ */
+inline bool isValidLuaScriptName(const std::string& name) {
+    return !name.empty() && name.length() <= 255;
+}
+
+/**
+ * Validate Lua script code (non-empty)
+ */
+inline bool isValidLuaScriptCode(const std::string& code) {
+    return !code.empty();
+}
+
+/**
+ * Validate Lua script timeout (100-30000 ms)
+ */
+inline bool isValidLuaTimeout(int timeout_ms) {
+    return timeout_ms >= 100 && timeout_ms <= 30000;
+}
+
+} // namespace validation
+} // namespace dbal
+
+#endif
diff --git a/dbal/cpp/src/validation/page_validation.hpp b/dbal/cpp/src/validation/page_validation.hpp
index e69de29bb..f696dde54 100644
--- a/dbal/cpp/src/validation/page_validation.hpp
+++ b/dbal/cpp/src/validation/page_validation.hpp
@@ -0,0 +1,26 @@
+/**
+ * @file page_validation.hpp
+ * @brief Validation functions for PageView entity
+ */
+#ifndef DBAL_PAGE_VALIDATION_HPP
+#define DBAL_PAGE_VALIDATION_HPP
+
+#include <string>
+#include <regex>
+
+namespace dbal {
+namespace validation {
+
+/**
+ * Validate slug format (lowercase alphanumeric with hyphens)
+ */
+inline bool isValidSlug(const std::string& slug) {
+    if (slug.empty() || slug.length() > 100) return false;
+    static const std::regex slug_pattern(R"([a-z0-9-]+)");
+    return std::regex_match(slug, slug_pattern);
+}
+
+} // namespace validation
+} // namespace dbal
+
+#endif
diff --git a/dbal/cpp/src/validation/workflow_validation.hpp b/dbal/cpp/src/validation/workflow_validation.hpp
new file mode 100644
index 000000000..f55d6ef94
--- /dev/null
+++ b/dbal/cpp/src/validation/workflow_validation.hpp
@@ -0,0 +1,33 @@
+/**
+ * @file workflow_validation.hpp
+ * @brief Validation functions for Workflow entity
+ */
+#ifndef DBAL_WORKFLOW_VALIDATION_HPP
+#define DBAL_WORKFLOW_VALIDATION_HPP
+
+#include <string>
+#include <array>
+#include <algorithm>
+
+namespace dbal {
+namespace validation {
+
+/**
+ * Validate workflow name (1-255 characters)
+ */
+inline bool isValidWorkflowName(const std::string& name) {
+    return !name.empty() && name.length() <= 255;
+}
+
+/**
+ * Validate workflow trigger type
+ */
+inline bool isValidWorkflowTrigger(const std::string& trigger) {
+    static const std::array<std::string, 4> allowed = {"manual", "schedule", "event", "webhook"};
+    return std::find(allowed.begin(), allowed.end(), trigger) != allowed.end();
+}
+
+} // namespace validation
+} // namespace dbal
+
+#endif
diff --git a/frontends/nextjs/package-lock.json b/frontends/nextjs/package-lock.json
index b5889f75c..6126008b3 100644
--- a/frontends/nextjs/package-lock.json
+++ b/frontends/nextjs/package-lock.json
@@ -61,7 +61,7 @@
                 "dotenv": "^17.2.3",
                 "eslint": "^9.39.2",
                 "eslint-plugin-react": "^7.37.5",
-                "eslint-plugin-react-hooks": "^7.0.1",
+                "eslint-plugin-react-hooks": "^5.2.0",
                 "eslint-plugin-react-refresh": "^0.4.26",
                 "globals": "^16.5.0",
                 "jsdom": "^27.3.0",
@@ -1088,55 +1088,6 @@
                 "node": ">=6.9.0"
             }
         },
-        "node_modules/@babel/compat-data": {
-            "version": "7.28.5",
-            "resolved": "https://registry.npmjs.org/@babel/compat-data/-/compat-data-7.28.5.tgz",
-            "integrity": "sha512-6uFXyCayocRbqhZOB+6XcuZbkMNimwfVGFji8CTZnCzOHVGvDqzvitu1re2AU5LROliz7eQPhB8CpAMvnx9EjA==",
-            "dev": true,
-            "license": "MIT",
-            "engines": {
-                "node": ">=6.9.0"
-            }
-        },
-        "node_modules/@babel/core": {
-            "version": "7.28.5",
-            "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.28.5.tgz",
-            "integrity": "sha512-e7jT4DxYvIDLk1ZHmU/m/mB19rex9sv0c2ftBtjSBv+kVM/902eh0fINUzD7UwLLNR+jU585GxUJ8/EBfAM5fw==",
-            "dev": true,
-            "license": "MIT",
-            "peer": true,
-            "dependencies": {
-                "@babel/code-frame": "^7.27.1",
-                "@babel/generator": "^7.28.5",
-                "@babel/helper-compilation-targets": "^7.27.2",
-                "@babel/helper-module-transforms": "^7.28.3",
-                "@babel/helpers": "^7.28.4",
-                "@babel/parser": "^7.28.5",
-                "@babel/template": "^7.27.2",
-                "@babel/traverse": "^7.28.5",
-                "@babel/types": "^7.28.5",
-                "@jridgewell/remapping": "^2.3.5",
-                "convert-source-map": "^2.0.0",
-                "debug": "^4.1.0",
-                "gensync": "^1.0.0-beta.2",
-                "json5": "^2.2.3",
-                "semver": "^6.3.1"
-            },
-            "engines": {
-                "node": ">=6.9.0"
-            },
-            "funding": {
-                "type": "opencollective",
-                "url": "https://opencollective.com/babel"
-            }
-        },
-        "node_modules/@babel/core/node_modules/convert-source-map": {
-            "version": "2.0.0",
-            "resolved": "https://registry.npmjs.org/convert-source-map/-/convert-source-map-2.0.0.tgz",
-            "integrity": "sha512-Kvp459HrV2FEJ1CAsi1Ku+MY3kasH19TFykTz2xWmMeq6bk2NU3XXvfJ+Q61m0xktWwt+1HSYf3JZsTms3aRJg==",
-            "dev": true,
-            "license": "MIT"
-        },
         "node_modules/@babel/generator": {
             "version": "7.28.5",
             "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.28.5.tgz",
@@ -1153,33 +1104,6 @@
                 "node": ">=6.9.0"
             }
         },
-        "node_modules/@babel/helper-compilation-targets": {
-            "version": "7.27.2",
-            "resolved": "https://registry.npmjs.org/@babel/helper-compilation-targets/-/helper-compilation-targets-7.27.2.tgz",
-            "integrity": "sha512-2+1thGUUWWjLTYTHZWK1n8Yga0ijBz1XAhUXcKy81rd5g6yh7hGqMp45v7cadSbEHc9G3OTv45SyneRN3ps4DQ==",
-            "dev": true,
-            "license": "MIT",
-            "dependencies": {
-                "@babel/compat-data": "^7.27.2",
-                "@babel/helper-validator-option": "^7.27.1",
-                "browserslist": "^4.24.0",
-                "lru-cache": "^5.1.1",
-                "semver": "^6.3.1"
-            },
-            "engines": {
-                "node": ">=6.9.0"
-            }
-        },
-        "node_modules/@babel/helper-compilation-targets/node_modules/lru-cache": {
-            "version": "5.1.1",
-            "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-5.1.1.tgz",
-            "integrity": "sha512-KpNARQA3Iwv+jTA0utUVVbrh+Jlrr1Fv0e56GGzAFOXN7dk/FviaDW8LHmK52DlcH4WP2n6gI8vN1aesBFgo9w==",
-            "dev": true,
-            "license": "ISC",
-            "dependencies": {
-                "yallist": "^3.0.2"
-            }
-        },
         "node_modules/@babel/helper-globals": {
             "version": "7.28.0",
             "resolved": "https://registry.npmjs.org/@babel/helper-globals/-/helper-globals-7.28.0.tgz",
@@ -1202,24 +1126,6 @@
                 "node": ">=6.9.0"
             }
         },
-        "node_modules/@babel/helper-module-transforms": {
-            "version": "7.28.3",
-            "resolved": "https://registry.npmjs.org/@babel/helper-module-transforms/-/helper-module-transforms-7.28.3.tgz",
-            "integrity": "sha512-gytXUbs8k2sXS9PnQptz5o0QnpLL51SwASIORY6XaBKF88nsOT0Zw9szLqlSGQDP/4TljBAD5y98p2U1fqkdsw==",
-            "dev": true,
-            "license": "MIT",
-            "dependencies": {
-                "@babel/helper-module-imports": "^7.27.1",
-                "@babel/helper-validator-identifier": "^7.27.1",
-                "@babel/traverse": "^7.28.3"
-            },
-            "engines": {
-                "node": ">=6.9.0"
-            },
-            "peerDependencies": {
-                "@babel/core": "^7.0.0"
-            }
-        },
         "node_modules/@babel/helper-string-parser": {
             "version": "7.27.1",
             "resolved": "https://registry.npmjs.org/@babel/helper-string-parser/-/helper-string-parser-7.27.1.tgz",
@@ -1238,30 +1144,6 @@
                 "node": ">=6.9.0"
             }
         },
-        "node_modules/@babel/helper-validator-option": {
-            "version": "7.27.1",
-            "resolved": "https://registry.npmjs.org/@babel/helper-validator-option/-/helper-validator-option-7.27.1.tgz",
-            "integrity": "sha512-YvjJow9FxbhFFKDSuFnVCe2WxXk1zWc22fFePVNEaWJEu8IrZVlda6N0uHwzZrUM1il7NC9Mlp4MaJYbYd9JSg==",
-            "dev": true,
-            "license": "MIT",
-            "engines": {
-                "node": ">=6.9.0"
-            }
-        },
-        "node_modules/@babel/helpers": {
-            "version": "7.28.4",
-            "resolved": "https://registry.npmjs.org/@babel/helpers/-/helpers-7.28.4.tgz",
-            "integrity": "sha512-HFN59MmQXGHVyYadKLVumYsA9dBFun/ldYxipEjzA4196jpLZd8UjEEBLkbEkvfYreDqJhZxYAWFPtrfhNpj4w==",
-            "dev": true,
-            "license": "MIT",
-            "dependencies": {
-                "@babel/template": "^7.27.2",
-                "@babel/types": "^7.28.4"
-            },
-            "engines": {
-                "node": ">=6.9.0"
-            }
-        },
         "node_modules/@babel/parser": {
             "version": "7.28.5",
             "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.28.5.tgz",
@@ -2763,17 +2645,6 @@
                 "@jridgewell/trace-mapping": "^0.3.24"
             }
         },
-        "node_modules/@jridgewell/remapping": {
-            "version": "2.3.5",
-            "resolved": "https://registry.npmjs.org/@jridgewell/remapping/-/remapping-2.3.5.tgz",
-            "integrity": "sha512-LI9u/+laYG4Ds1TDKSJW2YPrIlcVYOwi2fUC6xB43lueCjgxV4lffOCZCtYFiH6TNOX+tQKXx97T4IKHbhyHEQ==",
-            "dev": true,
-            "license": "MIT",
-            "dependencies": {
-                "@jridgewell/gen-mapping": "^0.3.5",
-                "@jridgewell/trace-mapping": "^0.3.24"
-            }
-        },
         "node_modules/@jridgewell/resolve-uri": {
             "version": "3.1.2",
             "resolved": "https://registry.npmjs.org/@jridgewell/resolve-uri/-/resolve-uri-3.1.2.tgz",
@@ -6553,41 +6424,6 @@
                 "node": ">=8"
             }
         },
-        "node_modules/browserslist": {
-            "version": "4.28.1",
-            "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.28.1.tgz",
-            "integrity": "sha512-ZC5Bd0LgJXgwGqUknZY/vkUQ04r8NXnJZ3yYi4vDmSiZmC/pdSN0NbNRPxZpbtO4uAfDUAFffO8IZoM3Gj8IkA==",
-            "dev": true,
-            "funding": [
-                {
-                    "type": "opencollective",
-                    "url": "https://opencollective.com/browserslist"
-                },
-                {
-                    "type": "tidelift",
-                    "url": "https://tidelift.com/funding/github/npm/browserslist"
-                },
-                {
-                    "type": "github",
-                    "url": "https://github.com/sponsors/ai"
-                }
-            ],
-            "license": "MIT",
-            "peer": true,
-            "dependencies": {
-                "baseline-browser-mapping": "^2.9.0",
-                "caniuse-lite": "^1.0.30001759",
-                "electron-to-chromium": "^1.5.263",
-                "node-releases": "^2.0.27",
-                "update-browserslist-db": "^1.2.0"
-            },
-            "bin": {
-                "browserslist": "cli.js"
-            },
-            "engines": {
-                "node": "^6 || ^7 || ^8 || ^9 || ^10 || ^11 || ^12 || >=13.7"
-            }
-        },
         "node_modules/buffer": {
             "version": "5.6.0",
             "resolved": "https://registry.npmjs.org/buffer/-/buffer-5.6.0.tgz",
@@ -7656,13 +7492,6 @@
                 "fast-check": "^3.23.1"
             }
         },
-        "node_modules/electron-to-chromium": {
-            "version": "1.5.267",
-            "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.5.267.tgz",
-            "integrity": "sha512-0Drusm6MVRXSOJpGbaSVgcQsuB4hEkMpHXaVstcPmhu5LIedxs1xNK/nIxmQIU/RPC0+1/o0AVZfBTkTNJOdUw==",
-            "dev": true,
-            "license": "ISC"
-        },
         "node_modules/empathic": {
             "version": "2.0.0",
             "resolved": "https://registry.npmjs.org/empathic/-/empathic-2.0.0.tgz",
@@ -7936,16 +7765,6 @@
                 "@esbuild/win32-x64": "0.27.2"
             }
         },
-        "node_modules/escalade": {
-            "version": "3.2.0",
-            "resolved": "https://registry.npmjs.org/escalade/-/escalade-3.2.0.tgz",
-            "integrity": "sha512-WUj2qlxaQtO4g6Pq5c29GTcWGDyd8itL8zTlipgECz3JesAiiOKotd8JU6otB3PACgG6xkJUyVhboMS+bje/jA==",
-            "dev": true,
-            "license": "MIT",
-            "engines": {
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-            }
-        },
         "node_modules/escape-html": {
             "version": "1.0.3",
             "resolved": "https://registry.npmjs.org/escape-html/-/escape-html-1.0.3.tgz",
@@ -8059,20 +7878,13 @@
             }
         },
         "node_modules/eslint-plugin-react-hooks": {
-            "version": "7.0.1",
-            "resolved": "https://registry.npmjs.org/eslint-plugin-react-hooks/-/eslint-plugin-react-hooks-7.0.1.tgz",
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+            "version": "5.2.0",
+            "resolved": "https://registry.npmjs.org/eslint-plugin-react-hooks/-/eslint-plugin-react-hooks-5.2.0.tgz",
+            "integrity": "sha512-+f15FfK64YQwZdJNELETdn5ibXEUQmW1DZL6KXhNnc2heoy/sg9VJJeT7n8TlMWouzWqSWavFkIhHyIbIAEapg==",
             "dev": true,
             "license": "MIT",
-            "dependencies": {
-                "@babel/core": "^7.24.4",
-                "@babel/parser": "^7.24.4",
-                "hermes-parser": "^0.25.1",
-                "zod": "^3.25.0 || ^4.0.0",
-                "zod-validation-error": "^3.5.0 || ^4.0.0"
-            },
             "engines": {
-                "node": ">=18"
+                "node": ">=10"
             },
             "peerDependencies": {
                 "eslint": "^3.0.0 || ^4.0.0 || ^5.0.0 || ^6.0.0 || ^7.0.0 || ^8.0.0-0 || ^9.0.0"
@@ -8697,16 +8509,6 @@
                 "node": ">= 0.4"
             }
         },
-        "node_modules/gensync": {
-            "version": "1.0.0-beta.2",
-            "resolved": "https://registry.npmjs.org/gensync/-/gensync-1.0.0-beta.2.tgz",
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-            "dev": true,
-            "license": "MIT",
-            "engines": {
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         "node_modules/get-intrinsic": {
             "version": "1.3.0",
             "resolved": "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.3.0.tgz",
@@ -8927,23 +8729,6 @@
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-        "node_modules/hermes-estree": {
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-            "resolved": "https://registry.npmjs.org/hermes-estree/-/hermes-estree-0.25.1.tgz",
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-            "dev": true,
-            "license": "MIT"
-        },
-        "node_modules/hermes-parser": {
-            "version": "0.25.1",
-            "resolved": "https://registry.npmjs.org/hermes-parser/-/hermes-parser-0.25.1.tgz",
-            "integrity": "sha512-6pEjquH3rqaI6cYAXYPcz9MS4rY6R4ngRgrgfDshRptUZIc3lw0MCIJIGDj9++mfySOuPTHB4nrSW99BCvOPIA==",
-            "dev": true,
-            "license": "MIT",
-            "dependencies": {
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         "node_modules/hoist-non-react-statics": {
             "version": "3.3.2",
             "resolved": "https://registry.npmjs.org/hoist-non-react-statics/-/hoist-non-react-statics-3.3.2.tgz",
@@ -9761,19 +9546,6 @@
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-            "resolved": "https://registry.npmjs.org/json5/-/json5-2.2.3.tgz",
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-            "dev": true,
-            "license": "MIT",
-            "bin": {
-                "json5": "lib/cli.js"
-            },
-            "engines": {
-                "node": ">=6"
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             "resolved": "https://registry.npmjs.org/jsx-ast-utils/-/jsx-ast-utils-3.3.5.tgz",
@@ -10202,13 +9974,6 @@
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             "license": "MIT"
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-            "resolved": "https://registry.npmjs.org/node-releases/-/node-releases-2.0.27.tgz",
-            "integrity": "sha512-nmh3lCkYZ3grZvqcCH+fjmQ7X+H0OeZgP40OierEaAptX4XofMh5kwNbWh7lBduUzCcV/8kZ+NDLCwm2iorIlA==",
-            "dev": true,
-            "license": "MIT"
-        },
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             "resolved": "https://registry.npmjs.org/nypm/-/nypm-0.6.2.tgz",
@@ -12365,37 +12130,6 @@
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-        "node_modules/update-browserslist-db": {
-            "version": "1.2.3",
-            "resolved": "https://registry.npmjs.org/update-browserslist-db/-/update-browserslist-db-1.2.3.tgz",
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-            "dev": true,
-            "funding": [
-                {
-                    "type": "opencollective",
-                    "url": "https://opencollective.com/browserslist"
-                },
-                {
-                    "type": "tidelift",
-                    "url": "https://tidelift.com/funding/github/npm/browserslist"
-                },
-                {
-                    "type": "github",
-                    "url": "https://github.com/sponsors/ai"
-                }
-            ],
-            "license": "MIT",
-            "dependencies": {
-                "escalade": "^3.2.0",
-                "picocolors": "^1.1.1"
-            },
-            "bin": {
-                "update-browserslist-db": "cli.js"
-            },
-            "peerDependencies": {
-                "browserslist": ">= 4.21.0"
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         "node_modules/uri-js": {
             "version": "4.4.1",
             "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.4.1.tgz",
@@ -12961,13 +12695,6 @@
             "dev": true,
             "license": "MIT"
         },
-        "node_modules/yallist": {
-            "version": "3.1.1",
-            "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.1.1.tgz",
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-            "dev": true,
-            "license": "ISC"
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@@ -12986,23 +12713,9 @@
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             "integrity": "sha512-0wZ1IRqGGhMP76gLqz8EyfBXKk0J2qo2+H3fi4mcUP/KtTocoX08nmIAHl1Z2kJIZbZee8KOpBCSNPRgauucjw==",
             "license": "MIT",
-            "peer": true,
             "funding": {
                 "url": "https://github.com/sponsors/colinhacks"
             }
-        },
-        "node_modules/zod-validation-error": {
-            "version": "4.0.2",
-            "resolved": "https://registry.npmjs.org/zod-validation-error/-/zod-validation-error-4.0.2.tgz",
-            "integrity": "sha512-Q6/nZLe6jxuU80qb/4uJ4t5v2VEZ44lzQjPDhYJNztRQ4wyWc6VF3D3Kb/fAuPetZQnhS3hnajCf9CsWesghLQ==",
-            "dev": true,
-            "license": "MIT",
-            "engines": {
-                "node": ">=18.0.0"
-            },
-            "peerDependencies": {
-                "zod": "^3.25.0 || ^4.0.0"
-            }
         }
     }
 }
diff --git a/frontends/nextjs/package.json b/frontends/nextjs/package.json
index b5f093466..85a166549 100644
--- a/frontends/nextjs/package.json
+++ b/frontends/nextjs/package.json
@@ -105,7 +105,7 @@
         "dotenv": "^17.2.3",
         "eslint": "^9.39.2",
         "eslint-plugin-react": "^7.37.5",
-        "eslint-plugin-react-hooks": "^7.0.1",
+        "eslint-plugin-react-hooks": "^5.2.0",
         "eslint-plugin-react-refresh": "^0.4.26",
         "globals": "^16.5.0",
         "jsdom": "^27.3.0",
diff --git a/frontends/nextjs/src/hooks/useResolvedUser.ts b/frontends/nextjs/src/hooks/useResolvedUser.ts
new file mode 100644
index 000000000..6970c5fc9
--- /dev/null
+++ b/frontends/nextjs/src/hooks/useResolvedUser.ts
@@ -0,0 +1,56 @@
+import { useEffect, useState } from 'react'
+import { Database } from '@/lib/database'
+import type { User } from '@/lib/level-types'
+import { useAuth } from './useAuth'
+
+export interface ResolvedUserState {
+  user: User | null
+  isAuthenticated: boolean
+  isLoading: boolean
+}
+
+export function useResolvedUser(): ResolvedUserState {
+  const { user: authUser, isAuthenticated, isLoading: isAuthLoading } = useAuth()
+  const [user, setUser] = useState<User | null>(null)
+  const [isLoading, setIsLoading] = useState(false)
+
+  useEffect(() => {
+    let active = true
+
+    if (!authUser?.id) {
+      setUser(null)
+      setIsLoading(false)
+      return () => {
+        active = false
+      }
+    }
+
+    setIsLoading(true)
+    Database.getUserById(authUser.id)
+      .then((loaded) => {
+        if (active) {
+          setUser(loaded)
+        }
+      })
+      .catch(() => {
+        if (active) {
+          setUser(null)
+        }
+      })
+      .finally(() => {
+        if (active) {
+          setIsLoading(false)
+        }
+      })
+
+    return () => {
+      active = false
+    }
+  }, [authUser?.id])
+
+  return {
+    user,
+    isAuthenticated,
+    isLoading: isAuthLoading || isLoading,
+  }
+}