diff --git a/src/baby_monitor/routers/child.py b/src/baby_monitor/routers/child.py
index d36aa09..fc628d3 100644
--- a/src/baby_monitor/routers/child.py
+++ b/src/baby_monitor/routers/child.py
@@ -63,12 +63,8 @@ def create_child(
 @router.get("", response_model=list[ChildResponse])
 def get_user_children(
     user_id: Annotated[int, Depends(verify_token)],
-    child_repo: Annotated[
-        ChildRepositoryInterface, Depends(get_child_repository)
-    ],
-    user_repo: Annotated[
-        UserRepositoryInterface, Depends(get_user_repository)
-    ],
+    child_repo: Annotated[ChildRepositoryInterface, Depends(get_child_repository)],
+    user_repo: Annotated[UserRepositoryInterface, Depends(get_user_repository)],
 ) -> list[ChildResponse]:
     """Get all children for the authenticated user."""
     children = child_repo.get_by_user_id(user_id)
diff --git a/src/baby_monitor/static/diapers.html b/src/baby_monitor/static/diapers.html
index 6bf330d..b02239c 100644
--- a/src/baby_monitor/static/diapers.html
+++ b/src/baby_monitor/static/diapers.html
@@ -321,7 +321,7 @@
 
           if (response.ok) {
             allChildren = await response.json();
-            
+
             // Auto-select first child if no selection exists
             if (selectedChildId === null && allChildren.length > 0) {
               selectedChildId = allChildren[0].id;
@@ -371,7 +371,9 @@
 
           content.innerHTML = `
             <div class="controls">
-              ${allChildren.length === 1 ? `
+              ${
+                allChildren.length === 1
+                  ? `
                 <label for="childDisplay">Child:</label>
                 <input
                   type="text"
@@ -380,12 +382,14 @@
                   readonly
                   style="background-color: #f5f5f5; cursor: default; padding: 8px; border: 1px solid #ddd; border-radius: 4px; font-size: 14px;"
                 />
-              ` : `
+              `
+                  : `
                 <label for="childFilter">Child:</label>
                 <select id="childFilter" onchange="onChildChange(event)">
                   ${childOptions}
                 </select>
-              `}
+              `
+              }
 
               <label for="daysRange">Time Range:</label>
               <select id="daysRange" onchange="onDaysRangeChange(event)">
diff --git a/src/baby_monitor/static/feedings.html b/src/baby_monitor/static/feedings.html
index b903af4..3336189 100644
--- a/src/baby_monitor/static/feedings.html
+++ b/src/baby_monitor/static/feedings.html
@@ -359,7 +359,7 @@
 
           if (response.ok) {
             allChildren = await response.json();
-            
+
             // Auto-select first child if no selection exists
             if (selectedChildId === null && allChildren.length > 0) {
               selectedChildId = allChildren[0].id;
@@ -409,7 +409,9 @@
 
           content.innerHTML = `
             <div class="controls">
-              ${allChildren.length === 1 ? `
+              ${
+                allChildren.length === 1
+                  ? `
                 <label for="childDisplay">Child:</label>
                 <input
                   type="text"
@@ -418,12 +420,14 @@
                   readonly
                   style="background-color: #f5f5f5; cursor: default; padding: 8px; border: 1px solid #ddd; border-radius: 4px; font-size: 14px;"
                 />
-              ` : `
+              `
+                  : `
                 <label for="childFilter">Child:</label>
                 <select id="childFilter" onchange="onChildChange(event)">
                   ${childOptions}
                 </select>
-              `}
+              `
+              }
 
               <label for="daysRange">Time Range:</label>
               <select id="daysRange" onchange="onDaysRangeChange(event)">
diff --git a/src/baby_monitor/static/log-diaper.html b/src/baby_monitor/static/log-diaper.html
index 37251ce..2b2813a 100644
--- a/src/baby_monitor/static/log-diaper.html
+++ b/src/baby_monitor/static/log-diaper.html
@@ -252,11 +252,11 @@
       // Determine return URL based on referrer
       function getReturnUrl() {
         const referrer = document.referrer;
-        if (referrer.includes('/diapers.html')) {
-          return '/diapers.html';
+        if (referrer.includes("/diapers.html")) {
+          return "/diapers.html";
         }
         // Default to home page
-        return '/';
+        return "/";
       }
 
       // Check if we're in edit mode
@@ -305,7 +305,7 @@
               `;
             } else {
               // Multiple children: show dropdown (clear the placeholder first)
-              select.innerHTML = '';
+              select.innerHTML = "";
               children.forEach((child) => {
                 const option = document.createElement("option");
                 option.value = child.id;
diff --git a/src/baby_monitor/static/log-feeding.html b/src/baby_monitor/static/log-feeding.html
index 73a4a7e..c1a8fb9 100644
--- a/src/baby_monitor/static/log-feeding.html
+++ b/src/baby_monitor/static/log-feeding.html
@@ -209,11 +209,11 @@
       // Determine return URL based on referrer
       function getReturnUrl() {
         const referrer = document.referrer;
-        if (referrer.includes('/feedings.html')) {
-          return '/feedings.html';
+        if (referrer.includes("/feedings.html")) {
+          return "/feedings.html";
         }
         // Default to home page
-        return '/';
+        return "/";
       }
 
       const form = document.getElementById("logFeedingForm");
@@ -287,7 +287,7 @@
               `;
             } else {
               // Multiple children: show dropdown (clear placeholder first)
-              childSelect.innerHTML = '';
+              childSelect.innerHTML = "";
               children.forEach((child) => {
                 const option = document.createElement("option");
                 option.value = child.id;
diff --git a/src/baby_monitor/static/log-sleep.html b/src/baby_monitor/static/log-sleep.html
index b23d6b2..aebc53e 100644
--- a/src/baby_monitor/static/log-sleep.html
+++ b/src/baby_monitor/static/log-sleep.html
@@ -199,11 +199,11 @@
       // Determine return URL based on referrer
       function getReturnUrl() {
         const referrer = document.referrer;
-        if (referrer.includes('/sleep.html')) {
-          return '/sleep.html';
+        if (referrer.includes("/sleep.html")) {
+          return "/sleep.html";
         }
         // Default to home page
-        return '/';
+        return "/";
       }
 
       const form = document.getElementById("logSleepForm");
@@ -277,7 +277,7 @@
               `;
             } else {
               // Multiple children: show dropdown (clear placeholder first)
-              childSelect.innerHTML = '';
+              childSelect.innerHTML = "";
               children.forEach((child) => {
                 const option = document.createElement("option");
                 option.value = child.id;
diff --git a/src/baby_monitor/static/settings.html b/src/baby_monitor/static/settings.html
index 90a03bf..13abd1a 100644
--- a/src/baby_monitor/static/settings.html
+++ b/src/baby_monitor/static/settings.html
@@ -168,7 +168,7 @@
 
       .shared-badge {
         display: inline-block;
-        background: #4CAF50;
+        background: #4caf50;
         color: white;
         padding: 4px 10px;
         border-radius: 12px;
@@ -510,20 +510,30 @@
         <div style="margin-bottom: 20px">
           <h3 style="color: #333; margin-bottom: 10px" id="editChildName"></h3>
           <div style="color: #666; font-size: 14px">
-            <p><strong>Birth Date:</strong> <span id="editChildBirthDate"></span></p>
-            <p><strong>Birth Weight:</strong> <span id="editChildBirthWeight"></span>g</p>
+            <p>
+              <strong>Birth Date:</strong> <span id="editChildBirthDate"></span>
+            </p>
+            <p>
+              <strong>Birth Weight:</strong>
+              <span id="editChildBirthWeight"></span>g
+            </p>
           </div>
         </div>
-        
+
         <div id="sharedUsersSection" style="margin-bottom: 20px; display: none">
-          <h3 style="color: #333; font-size: 16px; margin-bottom: 10px">👥 Shared With</h3>
-          <div id="sharedUsersList" style="
-            background: #f8f9fa;
-            padding: 15px;
-            border-radius: 8px;
-            color: #666;
-            font-size: 14px;
-          "></div>
+          <h3 style="color: #333; font-size: 16px; margin-bottom: 10px">
+            👥 Shared With
+          </h3>
+          <div
+            id="sharedUsersList"
+            style="
+              background: #f8f9fa;
+              padding: 15px;
+              border-radius: 8px;
+              color: #666;
+              font-size: 14px;
+            "
+          ></div>
         </div>
 
         <button
@@ -607,7 +617,7 @@
               <div class="child-card">
                 <div style="display: flex; align-items: center; gap: 10px;">
                   <h3 style="margin: 0;">👶 ${child.name}</h3>
-                  ${child.parent_count > 1 ? '<span class="shared-badge">Shared</span>' : ''}
+                  ${child.parent_count > 1 ? '<span class="shared-badge">Shared</span>' : ""}
                 </div>
                 <div class="child-info">
                   <p><strong>Birth Date:</strong> ${formatDate(child.birth_time)}</p>
@@ -644,23 +654,32 @@
         if (!child) return;
 
         // Populate modal with child information
-        document.getElementById("editChildName").textContent = `👶 ${child.name}`;
-        document.getElementById("editChildBirthDate").textContent = formatDate(child.birth_time);
-        document.getElementById("editChildBirthWeight").textContent = child.birth_weight;
+        document.getElementById("editChildName").textContent =
+          `👶 ${child.name}`;
+        document.getElementById("editChildBirthDate").textContent = formatDate(
+          child.birth_time,
+        );
+        document.getElementById("editChildBirthWeight").textContent =
+          child.birth_weight;
 
         // Show shared users if child is shared
         const sharedSection = document.getElementById("sharedUsersSection");
         const sharedList = document.getElementById("sharedUsersList");
-        
+
         if (child.parent_usernames && child.parent_usernames.length > 1) {
           // Filter out current user and show other users
-          const otherUsers = child.parent_usernames.filter(username => username !== currentUser.username);
-          
+          const otherUsers = child.parent_usernames.filter(
+            (username) => username !== currentUser.username,
+          );
+
           if (otherUsers.length > 0) {
             sharedSection.style.display = "block";
-            sharedList.innerHTML = otherUsers.map(username => 
-              `<div style="padding: 5px 0;">• ${username}</div>`
-            ).join("");
+            sharedList.innerHTML = otherUsers
+              .map(
+                (username) =>
+                  `<div style="padding: 5px 0;">• ${username}</div>`,
+              )
+              .join("");
           } else {
             sharedSection.style.display = "none";
           }
diff --git a/src/baby_monitor/static/sleep.html b/src/baby_monitor/static/sleep.html
index 2d7c20b..b204495 100644
--- a/src/baby_monitor/static/sleep.html
+++ b/src/baby_monitor/static/sleep.html
@@ -374,7 +374,7 @@
           }
 
           // Populate child filter or show single child
-          const childFilterContainer = document.querySelector('.controls');
+          const childFilterContainer = document.querySelector(".controls");
           if (allChildren.length === 1) {
             // Single child: show as read-only text
             const child = allChildren[0];
@@ -401,7 +401,7 @@
           } else {
             // Multiple children: show dropdown
             const childFilter = document.getElementById("childFilter");
-            childFilter.innerHTML = '';
+            childFilter.innerHTML = "";
             allChildren.forEach((child) => {
               const option = document.createElement("option");
               option.value = child.id;