MCP - Add flight-icons resource

[zamoore]

📌 Summary

If merged, this PR adds Flight Icons MCP resources (hds://icons and hds://icons/{iconName}) backed by a new icon catalog store + schema/lookup layer, and registers them in MCP resource bootstrapping.

🛠️ Detailed description

• Adds packages/mcp/src/resources/flight-icons.ts with:
  • catalog index resource (get_hds_icons)
  • per-icon resource (get_hds_icon)
• Adds packages/mcp/src/stores/flight-icons/:
  • schema.ts for catalog validation (Zod)
  • lookup.ts for icon record shaping + normalized lookup keys
  • store.ts for loading @hashicorp/flight-icons/catalog.json, metadata, lookup, and filtering/search support
• Updates packages/mcp/src/resources/index.ts to register Flight Icons resources.

Copilot instructions

Focus review on resource contract shape, lookup normalization behavior (icon name + filename), and not-found/error responses.

Jira ticket: HDS-6484

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💬 Please consider using conventional comments when reviewing this PR.

📋 PCI review checklist

• If applicable, I've documented a plan to revert these changes if they require more than reverting the pull request.
• If applicable, I've worked with GRC to document the impact of any changes to security controls.
  Examples of changes to controls include access controls, encryption, logging, etc.
• If applicable, I've worked with GRC to ensure compliance due to a significant change to the in-scope PCI environment.
  Examples include changes to operating systems, ports, protocols, services, cryptography-related components, PII processing code, etc.

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[Copilot]

Pull request overview

This PR aims to add MCP “flight-icons” resources (hds://icons and hds://icons/{icon}) by introducing a validated in-memory icon catalog store plus JSON resource response helpers.

Changes:

• Adds a flight-icons catalog loader/store with normalization, lookup, and filtered search helpers.
• Adds resource readers for icon collection and single-icon payloads, plus JSON response utilities.
• Updates the lockfile (notably rxjs resolution) and attempts to wire resource registration in the MCP entrypoint.

Reviewed changes

Copilot reviewed 4 out of 5 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
pnpm-lock.yaml	Updates dependency resolutions (e.g., rxjs 7.8.1 → 7.8.2).
packages/mcp/src/utils/resources.ts	Adds JSON response + “safe handler” utilities for MCP resource readers.
packages/mcp/src/stores/flight-icons/schema.ts	Introduces Zod schemas/types for validating the icon catalog JSON.
packages/mcp/src/stores/flight-icons/lookup.ts	Adds normalization + record/variant shaping and lookup-key generation.
packages/mcp/src/stores/flight-icons/store.ts	Implements catalog loading, indexing (name/filename), metadata, and search filtering.
packages/mcp/src/resources/flight-icons.ts	Defines payload shapes for hds://icons and hds://icons/{icon} resource reads.
packages/mcp/src/index.ts	MCP server entrypoint; currently contains unresolved merge-conflict markers around resource registration.

Files not reviewed (1)

• pnpm-lock.yaml: Generated file