Implement Copilot to Neo transition

Redirect Copilot documentation URLs to Neo and add transition notices across the site.

## Redirects (301)
- `/docs/ai/copilot/` → `/docs/ai/`
- `/docs/pulumi-cloud/copilot/` → `/docs/ai/`
- `/docs/intro/copilot/` → `/docs/ai/`
- `/docs/intro/pulumi-cloud/copilot/` → `/docs/ai/`

## Content Updates
- Added transition notices to 47 pages (docs, blog, case studies)
- Updated "Pulumi Copilot" references to "Pulumi Neo" in navigation
- Removed Copilot card from `/docs/ai/` navigation

## Notice Format
Pages now display: "Copilot has evolved into Pulumi Neo, your AI platform engineer. Some features or functionality described here may differ from the latest version."

## Files Modified
- 17 documentation pages
- 30 blog posts
- 1 case study

Author: asafashirov

content/blog/cli-ai-extensions/index.md

@@ -18,6 +18,11 @@ social:
     linkedin: "Excited to announce AI-powered features in the Pulumi CLI! ✨ Our new 'explain' feature translates complex infrastructure changes into clear, human-readable summaries, while our AI error analysis transforms cryptic cloud provider error messages into actionable guidance. Enable with --copilot flag and let us know what you think!"
 ---
 
+{{< notes type="info" >}}
+**Note:** Copilot has evolved into [Pulumi Neo](/product/neo/), your AI platform engineer. Some features or functionality described here may differ from the latest version.
+{{< /notes >}}
+
+
 We're excited to announce the new AI capabilities for Pulumi CLI powered by Pulumi Copilot that translate complex infrastructure changes into clear, human-readable explanations and help resolve deployment errors with actionable guidance. Enable these preview features with the `--copilot` flag.
 
 <!--more-->

content/blog/codegen-learnings/index.md

@@ -15,6 +15,11 @@ tags:
 
 ---
 
+{{< notes type="info" >}}
+**Note:** Copilot has evolved into [Pulumi Neo](/product/neo/), your AI platform engineer. Some features or functionality described here may differ from the latest version.
+{{< /notes >}}
+
+
 When asked about his research process, Anthony Bourdain would describe how he'd blend his formal culinary training with deep dives into local food culture - from market stalls to family recipes. Modern AI code generation follows a similar path: it can't just rely on what it knows - it must tap into continuously evolving, domain-specific knowledge bases. Just as Bourdain would combine his classical French training with techniques learned from local kitchens, AI code generators blend their built-in knowledge with retrieved code snippets and type definitions to generate code that accurately represents the user's intent.
 
 This fusion of base knowledge with contextual understanding is especially valuable for Infrastructure as Code (IaC), where rapidly evolving cloud providers and libraries make manual development challenging, traditional debugging cycles impractical, and errors catastrophically expensive.

content/blog/copilot-in-docs/index.md

@@ -16,6 +16,11 @@ social:
     twitter: "Pulumi Copilot is now available across Pulumi Documentation and pulumi.com, and comes equipped with a powerful new Documentation Skill! Learn more by reading our blog:"
 ---
 
+{{< notes type="info" >}}
+**Note:** Copilot has evolved into [Pulumi Neo](/product/neo/), your AI platform engineer. Some features or functionality described here may differ from the latest version.
+{{< /notes >}}
+
+
 [Pulumi Copilot](/docs/pulumi-cloud/copilot/) has been making our customers' day-to-day tasks easier since its release, and today we’re excited to expand its capabilities—Pulumi Copilot is now available across Pulumi Documentation and pulumi.com, and comes equipped with a powerful new Documentation Skill!
 
 <!--more-->

content/blog/copilot-in-vscode/index.md

@@ -47,6 +47,11 @@ social:
     Learn how Pulumi Copilot is revolutionizing cloud development: [Link]"
 
 ---
+
+{{< notes type="info" >}}
+**Note:** Copilot has evolved into [Pulumi Neo](/product/neo/), your AI platform engineer. Some features or functionality described here may differ from the latest version.
+{{< /notes >}}
+
 Programming languages offer dozens of advantages for writing Infrastructure as Code (IaC). One of them is that Large Language Models are  effective at using general-purpose programming languages, thanks to the vast amount of high-quality training data available. Building on this advantage, we introduced Pulumi AI and Pulumi Copilot last year to enhance Infrastructure-as-Code development with generative AI capabilities. These tools have significantly streamlined infrastructure deployment for tens of thousands of developers.
 
 Today, we are thrilled to announce that Pulumi Copilot is now available directly within [Pulumi Copilot Chat Extension](https://marketplace.visualstudio.com/items?itemName=pulumi.pulumi-vscode-copilot). By simply typing @pulumi in Copilot Chat, developers can now access the power of Pulumi Copilot right within their IDE, saving them time on writing IaC and getting infrastructure deployed.

content/blog/copilot-lessons/index.md

@@ -20,6 +20,11 @@ social:
         One memorable turning point came from user feedback: "Your tool doesn't know anything!" Instead of seeing it as failure, we saw opportunity—leading to significant improvements.
         Curious how we turned unexpected challenges into product breakthroughs? Learn more: https://www.pulumi.com/blog/copilot-lessons/
 ---
+
+{{< notes type="info" >}}
+**Note:** Copilot has evolved into [Pulumi Neo](/product/neo/), your AI platform engineer. Some features or functionality described here may differ from the latest version.
+{{< /notes >}}
+
 Building AI-powered developer tools comes with unique challenges, and now that we've **[launched our REST API](/blog/pulumi-copilot-rest/)**, we want to share some lessons we've learned building Pulumi Copilot, an AI assistant for cloud infrastructure.
 
 One of the big challenges was determining what 'working' really meant. So when a message landed in our feedback channel after months of rigorous testing - 'Your tool doesn't know anything!' - it caused some mild panic. We'd just made some changes, so we braced for the worst. But our evals were still looking strong, so what was going on?

content/blog/copilot-system-prompts/index.md

@@ -13,6 +13,11 @@ tags:
     - releases
 ---
 
+{{< notes type="info" >}}
+**Note:** Copilot has evolved into [Pulumi Neo](/product/neo/), your AI platform engineer. Some features or functionality described here may differ from the latest version.
+{{< /notes >}}
+
+
 We are excited to announce a new feature for Pulumi Copilot: System Prompts. This enhancement empowers organizations to customize Pulumi Copilot's responses for your organization, making your interactions with our AI assistant even more personalized to save you even more time.
 
 <!--more-->

content/blog/future-cloud-infrastructure-10-trends-shaping-2024-and-beyond/index.md

@@ -46,6 +46,11 @@ tags:
 # for details, and please remove these comments before submitting for review.
 ---
 
+{{< notes type="info" >}}
+**Note:** Copilot has evolved into [Pulumi Neo](/product/neo/), your AI platform engineer. Some features or functionality described here may differ from the latest version.
+{{< /notes >}}
+
+
 In 2025, several trends will dominate cloud computing, driving innovation, efficiency, and scalability. From Infrastructure as Code (IaC) to AI/ML, platform engineering to multi-cloud and hybrid strategies, and security practices, let's explore the 10 biggest emerging trends.
 
 <!--more-->

content/blog/hidden-costs-of-infrastructure-management/index.md

@@ -9,6 +9,11 @@ tags:
     - infrastructure-as-code
 ---
 
+{{< notes type="info" >}}
+**Note:** Copilot has evolved into [Pulumi Neo](/product/neo/), your AI platform engineer. Some features or functionality described here may differ from the latest version.
+{{< /notes >}}
+
+
 [Infrastructure as Code (IaC)](/what-is/what-is-infrastructure-as-code/) has revolutionized how cloud resources are managed, allowing for more efficient, scalable, and repeatable deployments. We designed [Pulumi IaC](/product/infrastructure-as-code/) to let you program cloud infrastructure using familiar programming languages like TypeScript, JavaScript, Python, Go, .NET, Java, and YAML. This approach not only simplifies the process but also integrates seamlessly with existing development tools and ecosystems (e.g., IDEs, standard unit test frameworks, integration test). You can define infrastructure with code, often in just one line, for serverless, Kubernetes, AI/ML, databases, and more. You can also preview changes before deploying unlike many other IaC solutions. Pulumi IaC is fully open source with a [public roadmap](https://github.com/orgs/pulumi/projects/44/). We value working with the community to shape the product through feedback and contributions.
 
 ## What is Pulumi Cloud?

content/blog/insights-cloud-account-discovery/index.md

@@ -56,6 +56,11 @@ social:
 # for details, and please remove these comments before submitting for review.
 ---
 
+{{< notes type="info" >}}
+**Note:** Copilot has evolved into [Pulumi Neo](/product/neo/), your AI platform engineer. Some features or functionality described here may differ from the latest version.
+{{< /notes >}}
+
+
 Enterprise cloud infrastructures are complex environments that are evolved over time and made up of thousands of different kinds of resources. Enabling customers to wrap their arms around this complexity and get a complete understanding of the scope and structure is the goal of the Pulumi Insights 2.0 product.
 
 <!--more-->

content/blog/mcp-server-ai-assistants/index.md

@@ -17,6 +17,11 @@ social:
     linkedin: "Discover how integrating AI coding assistants (like Cursor, Copilot, etc.) with Pulumi's Model Context Protocol (MCP) server transforms Infrastructure as Code development. This post walks through a real-world example of provisioning an AKS cluster, showcasing reduced context switching, faster discovery, and tighter feedback loops—all within the editor. Boost your team's productivity and improve the developer experience with AI-assisted IaC."
 ---
 
+{{< notes type="info" >}}
+**Note:** Copilot has evolved into [Pulumi Neo](/product/neo/), your AI platform engineer. Some features or functionality described here may differ from the latest version.
+{{< /notes >}}
+
+
 Infrastructure as Code (IaC) has revolutionized how we manage cloud resources, but navigating complex cloud provider APIs, writing boilerplate code, and iterating through deployment cycles can still be time-consuming. Pulumi offers a fantastic developer experience using familiar programming languages. But what if we could make it even *faster* and more intuitive by integrating powerful AI assistants directly into the development loop?
 
 <!--more-->