Add starter profile templates to CLI

[cutecatfann]

What I did

• Add three starter profile templates (AI coding, Dev workflow, Terminal control) that create profiles from the Docker catalog with curated server combinations
• Two entry points: docker mcp template list/use <id> and docker mcp profile create --from-template <id>
• Auto-pulls the Docker MCP catalog if not present locally for seamless first-time UX
• Shows a template hint on docker mcp profile list when no profiles exist

Testing
Listing the templates

mcp-gateway % docker mcp template list
ID	Title	Servers	Description
----	----	----	----
ai-coding	AI coding	context7, sequentialthinking	Write code faster with Context7 for codebase awareness and Sequential Thinking for structured problem-solving.
dev-workflow	Dev workflow	github-official, atlassian-remote	Automate your development cycle: open issues, write code, and update tickets with GitHub and Atlassian.
terminal-control	Terminal control	desktop-commander, filesystem	Run commands and scripts, manage files, and control your system directly from your AI client.

No profiles hint

mcp-gateway % docker mcp profile list
No profiles found. Use `docker mcp profile create --name <name>` to create a profile.

Tip: Get started quickly with a starter template:
  docker mcp template list       View available templates
  docker mcp template use <id>   Create a profile from a template

Using a template

mcp-gateway % docker mcp template use ai-coding
Pulling Docker MCP catalog...
Catalog mcp/docker-mcp-catalog:latest pulled
Created profile ai_coding with 2 servers
mimipieper@L61J7N496J mcp-gateway % docker mcp profile list
MCP governance enabled, policy evaluation active
ID	Name	Policy
----	----	------
ai_coding	AI coding	Allowed

Using a template with a client and a name

mcp-gateway % docker mcp template use dev-workflow --connect cursor --name "testy testy"
Pulling Docker MCP catalog...
Catalog mcp/docker-mcp-catalog:latest pulled
Created profile testy_testy with 2 servers
Connected to clients: cursor
mcp-gateway % docker mcp profile list
MCP governance enabled, policy evaluation active
ID	Name	Policy
----	----	------
ai_coding	AI coding	Allowed
testy_testy	testy testy	Allowed

Via profile create flag

mcp-gateway % docker mcp profile create --from-template terminal-control --connect cursor
Pulling Docker MCP catalog...
Catalog mcp/docker-mcp-catalog:latest pulled
Created profile terminal_control with 2 servers
Connected to clients: cursor
mcp-gateway % docker mcp profile list
MCP governance enabled, policy evaluation active
ID	Name	Policy
----	----	------
ai_coding	AI coding	Allowed
testy_testy	testy testy	Allowed
terminal_control	Terminal control	Allowed

[slimslenderslacks]

reviewed. Looks good.