Add individual get endpoints for projects and sprints

New API endpoints:
- GET /api/projects/[id] - Get single project
- GET /api/sprints/[id] - Get single sprint

New CLI commands:
- project get <id> - Get specific project
- sprint get <id> - Get specific sprint

Project and Sprint CRUD now complete:
✅ list, get, create, update, delete

scripts/gantt.sh

@@ -295,6 +295,18 @@ cmd_project_list() {
   api_call GET "/projects" | jq '.projects'
 }
 
+cmd_project_get() {
+  local project_id="$1"
+  
+  if [ -z "$project_id" ]; then
+    log_error "Usage: project get <project-id>"
+    exit 1
+  fi
+  
+  log_info "Fetching project $project_id..."
+  api_call GET "/projects/$project_id" | jq '.project'
+}
+
 cmd_project_create() {
   local name="$1"
   local description="${2:-}"
@@ -351,6 +363,18 @@ cmd_sprint_list() {
   api_call GET "/sprints" | jq '.sprints'
 }
 
+cmd_sprint_get() {
+  local sprint_id="$1"
+  
+  if [ -z "$sprint_id" ]; then
+    log_error "Usage: sprint get <sprint-id>"
+    exit 1
+  fi
+  
+  log_info "Fetching sprint $sprint_id..."
+  api_call GET "/sprints/$sprint_id" | jq '.sprint'
+}
+
 cmd_sprint_create() {
   local name="$1"
   local project_id="$2"
@@ -630,6 +654,7 @@ TASK COMMANDS:
 
 PROJECT COMMANDS:
   project list                    List all projects
+  project get <id>                Get specific project
   project create <name> [desc] [color]
                                   Create new project
   project update <id> <field> <val>
@@ -639,6 +664,7 @@ PROJECT COMMANDS:
 
 SPRINT COMMANDS:
   sprint list                     List all sprints
+  sprint get <id>                 Get specific sprint
   sprint create <name> <project-id> [start] [end] [goal]
                                   Create new sprint
   sprint update <id> <field> <val>
@@ -727,6 +753,7 @@ main() {
       shift || true
       case "$subcmd" in
         list|ls) cmd_project_list "$@" ;;
+        get|show) cmd_project_get "$@" ;;
         create|new|add) cmd_project_create "$@" ;;
         update|set|edit) cmd_project_update "$@" ;;
         delete|rm|remove) cmd_project_delete "$@" ;;
@@ -738,6 +765,7 @@ main() {
       shift || true
       case "$subcmd" in
         list|ls) cmd_sprint_list "$@" ;;
+        get|show) cmd_sprint_get "$@" ;;
         create|new|add) cmd_sprint_create "$@" ;;
         update|set|edit) cmd_sprint_update "$@" ;;
         delete|rm|remove) cmd_sprint_delete "$@" ;;

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

@@ -0,0 +1,39 @@
+import { NextResponse } from "next/server";
+import { getServiceSupabase } from "@/lib/supabase/client";
+import { getAuthenticatedUser } from "@/lib/server/auth";
+
+export const runtime = "nodejs";
+
+// GET - fetch single project by ID
+export async function GET(
+  request: Request,
+  { params }: { params: Promise<{ id: string }> }
+) {
+  try {
+    const user = await getAuthenticatedUser();
+    if (!user) {
+      return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
+    }
+    
+    const { id } = await params;
+    
+    const supabase = getServiceSupabase();
+    const { data, error } = await supabase
+      .from("projects")
+      .select("*")
+      .eq("id", id)
+      .single();
+    
+    if (error) {
+      if (error.code === "PGRST116") {
+        return NextResponse.json({ error: "Project not found" }, { status: 404 });
+      }
+      throw error;
+    }
+    
+    return NextResponse.json({ project: data });
+  } catch (error) {
+    console.error(">>> API GET /projects/[id] error:", error);
+    return NextResponse.json({ error: "Failed to fetch project" }, { status: 500 });
+  }
+}

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

@@ -0,0 +1,39 @@
+import { NextResponse } from "next/server";
+import { getServiceSupabase } from "@/lib/supabase/client";
+import { getAuthenticatedUser } from "@/lib/server/auth";
+
+export const runtime = "nodejs";
+
+// GET - fetch single sprint by ID
+export async function GET(
+  request: Request,
+  { params }: { params: Promise<{ id: string }> }
+) {
+  try {
+    const user = await getAuthenticatedUser();
+    if (!user) {
+      return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
+    }
+    
+    const { id } = await params;
+    
+    const supabase = getServiceSupabase();
+    const { data, error } = await supabase
+      .from("sprints")
+      .select("*")
+      .eq("id", id)
+      .single();
+    
+    if (error) {
+      if (error.code === "PGRST116") {
+        return NextResponse.json({ error: "Sprint not found" }, { status: 404 });
+      }
+      throw error;
+    }
+    
+    return NextResponse.json({ sprint: data });
+  } catch (error) {
+    console.error(">>> API GET /sprints/[id] error:", error);
+    return NextResponse.json({ error: "Failed to fetch sprint" }, { status: 500 });
+  }
+}