Add StatusReporter abstraction for vMCP runtime

[4t8dd]

Implement StatusReporter interface and LoggingReporter to enable vMCP runtime to report operational status (phase, discovered backends, health conditions).

This commit provides:

• Reporter interface with ReportStatus() and Start() methods
• Status model: Phase, Conditions, DiscoveredBackends
• LoggingReporter: Logs status updates for debugging (no persistence)
• Integration into vMCP server lifecycle with shutdown function pattern

The interface is designed to support future implementations that persist status to different backends. This PR includes only the logging implementation for CLI mode.

Integration:

• vMCP server calls reporter.Start() which returns shutdown function
• CLI mode uses LoggingReporter with logging disabled by default
• Status reporting is optional (nil reporter = disabled)

Related: #3147

[codecov]

Codecov Report

❌ Patch coverage is 92.00000% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 64.74%. Comparing base (a7962a6) to head (8f1ce60).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
cmd/vmcp/app/commands.go	0.00%	2 Missing ⚠️
pkg/vmcp/server/server.go	77.77%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3159      +/-   ##
==========================================
- Coverage   64.79%   64.74%   -0.05%     
==========================================
  Files         381      382       +1     
  Lines       37149    37187      +38     
==========================================
+ Hits        24071    24078       +7     
- Misses      11191    11223      +32     
+ Partials     1887     1886       -1     

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[4t8dd]

@JAORMX can you take some time to review this PR so that I can keep working this serials.

[JAORMX]

Sorry for the delay in reviewing this!

[4t8dd]

Since you guys take your time to get this reviewed. I will try to resolve all these. But it would take some time provided it has been some time. Just let you know. Thanks.

[JAORMX]

Hey @4t8dd,

I owe you an apology. You did everything right and we dropped the ball. Leaving your PR without review for 3 weeks while someone else started re-implementing the same thing isn't okay.

Your PR is the one we want to land. Happy to help with the merge conflicts if useful. We're tightening up our process so this doesn't happen again.

Thanks for sticking with it.

[Copilot]

Pull request overview

This PR implements a StatusReporter abstraction to enable the vMCP runtime to report operational status. The abstraction provides a foundation for the runtime to communicate its state (phase, discovered backends, health conditions) back to control planes, eliminating the need for duplicate backend discovery between the operator and runtime.

Changes:

• Introduces StatusReporter interface with ReportStatus() and Start() methods returning shutdown functions
• Adds Status model types (Phase, Conditions, DiscoveredBackends) and ToCRDStatus() mapping method
• Implements LoggingReporter for CLI mode that logs status at Debug level
• Integrates status reporter lifecycle into vMCP server with shutdown function pattern

Reviewed changes

Copilot reviewed 16 out of 16 changed files in this pull request and generated 10 comments.

Show a summary per file

File	Description
pkg/vmcp/types.go	Adds Status model, Phase constants, Condition constants, DiscoveredBackend type with DeepCopy methods, and ToCRDStatus() conversion method
pkg/vmcp/status/reporter.go	Defines StatusReporter interface with ReportStatus and Start methods
pkg/vmcp/status/logging_reporter.go	Implements LoggingReporter for CLI mode with debug-level logging
pkg/vmcp/status/logging_reporter_test.go	Tests for LoggingReporter covering basic functionality and nil status handling
pkg/vmcp/status/doc.go	Package documentation for status reporting abstraction
pkg/vmcp/server/server.go	Integrates StatusReporter into server lifecycle with shutdownFuncs pattern
pkg/vmcp/server/server_test.go	Adds tests for reporter lifecycle integration and stub reporter for testing
cmd/vmcp/app/commands.go	Creates LoggingReporter instance for CLI mode
cmd/thv-operator/api/v1alpha1/virtualmcpserver_types.go	Aliases DiscoveredBackend to canonical pkg/vmcp definition
cmd/thv-operator/controllers/virtualmcpserver_controller.go	Uses ToCRDStatus() method to simplify status mapping
cmd/thv-operator/controllers/virtualmcpserver_discover_backends_test.go	Updates test assertions to use BackendStatus constants
cmd/thv-operator/api/v1alpha1/zz_generated.deepcopy.go	Removes autogenerated DeepCopy methods (now in pkg/vmcp/types.go)
docs/arch/10-virtual-mcp-architecture.md	Documents status reporting design and integration

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[yrobla]

please review copilot's comments + some of my pending comments

[4t8dd]

wait.
"Unauthenticated" is a reason why a backend is unavailable, not a status itself:

• Status: ready, degraded, unavailable, unknown (describes current state)
• Reason: unauthenticated, connection refused, timeout, etc. (describes why)
  I prefer not to add it as a status case here.

[4t8dd]

@JAORMX no problem. I also want to make this before my holiday soon.

[yrobla]

@4t8dd thanks for your hard work and patience there, merging!