Config-as-code gaps: grouping/fingerprinting rules, integration status mappings, and org-level project templates

[sentry-junior]

Problem Statement

The Terraform provider covers a good portion of project provisioning: teams,
projects, alert rules. Organizations with many projects and a platform team that
owns the standard still fall back to the UI for the settings that matter most to
consistency, and there is no concept of a baseline that projects inherit from.

Specific gaps:

• Grouping and fingerprinting rules are configured per project in the UI. For teams
  where fingerprinting is the difference between usable and unusable grouping, this
  is the single most valuable thing to standardise and the one that cannot be.
• Issue-tracker integration configuration, including status mappings, is not
  manageable as code, so every project's workflow integration is set up by hand.
• There is no organization-level template. New projects start from defaults rather
  than from the organization's standard, which means every project begins
  misconfigured relative to what the platform team intends.
• There is no drift view. Nothing shows which projects have diverged from the
  standard, or in what way, so the standard erodes silently.

There is a real tension underneath this and both halves need support: an
organization wants a consistent baseline, and individual teams need to tune specific
settings for their own product. Today neither is well served, because without a
baseline there is nothing to inherit from and nothing to deliberately diverge from.

Solution Brainstorm

• Extend public API and Terraform coverage to grouping and fingerprinting rules and
  to integration status mappings, following the pattern of Add public API and Terraform support for CODEOWNERS import #116573.
• Organization-level project templates that new projects inherit at creation, with
  explicit per-project overrides so local tuning is supported and visible rather
  than indistinguishable from drift.
• A drift view showing which projects differ from their template and where.

Related: #116573

Product Area

Settings - General

Requested by Saad Khan.

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View Junior Session [Sentry]

[linear-code]

ENG-8514