fix(posts): Decode URL-encoded post IDs in API routes

- Add decodeURIComponent() to handle URL-encoded characters in post IDs
- Update like endpoint POST and DELETE handlers to decode rawId parameter
- Update repost endpoint POST and DELETE handlers to decode rawId parameter
- Update post retrieval GET handler to decode rawId parameter
- Fixes issues with special characters (e.g., %3A for colons) in post identifiers

src/app/api/posts/[id]/like/route.ts

@@ -34,7 +34,8 @@ function extractSwarmPostId(apId: string): string | null {
 export async function POST(request: Request, context: RouteContext) {
     try {
         const user = await requireAuth();
-        const { id: postId } = await context.params;
+        const { id: rawId } = await context.params;
+        const postId = decodeURIComponent(rawId);
         const nodeDomain = process.env.NEXT_PUBLIC_NODE_DOMAIN || 'localhost:3000';
 
         if (user.isSuspended || user.isSilenced) {
@@ -210,7 +211,8 @@ export async function POST(request: Request, context: RouteContext) {
 export async function DELETE(request: Request, context: RouteContext) {
     try {
         const user = await requireAuth();
-        const { id: postId } = await context.params;
+        const { id: rawId } = await context.params;
+        const postId = decodeURIComponent(rawId);
         const nodeDomain = process.env.NEXT_PUBLIC_NODE_DOMAIN || 'localhost:3000';
 
         if (user.isSuspended || user.isSilenced) {

src/app/api/posts/[id]/repost/route.ts

@@ -34,7 +34,8 @@ function extractSwarmPostId(apId: string): string | null {
 export async function POST(request: Request, context: RouteContext) {
     try {
         const user = await requireAuth();
-        const { id: postId } = await context.params;
+        const { id: rawId } = await context.params;
+        const postId = decodeURIComponent(rawId);
         const nodeDomain = process.env.NEXT_PUBLIC_NODE_DOMAIN || 'localhost:3000';
 
         if (user.isSuspended || user.isSilenced) {
@@ -229,7 +230,8 @@ export async function POST(request: Request, context: RouteContext) {
 export async function DELETE(request: Request, context: RouteContext) {
     try {
         const user = await requireAuth();
-        const { id: postId } = await context.params;
+        const { id: rawId } = await context.params;
+        const postId = decodeURIComponent(rawId);
         const nodeDomain = process.env.NEXT_PUBLIC_NODE_DOMAIN || 'localhost:3000';
 
         if (user.isSuspended || user.isSilenced) {

src/app/api/posts/[id]/route.ts

@@ -8,7 +8,9 @@ export async function GET(
     { params }: { params: Promise<{ id: string }> }
 ) {
     try {
-        const { id } = await params;
+        const { id: rawId } = await params;
+        // Decode URL-encoded characters (e.g., %3A -> :)
+        const id = decodeURIComponent(rawId);
 
         const nodeDomain = process.env.NEXT_PUBLIC_NODE_DOMAIN || 'localhost:3000';