feat(oracle): enable slinky pre-blocker

[Pitasi]

This PR makes wardend actually use the wrapped preblocker from slinky so that prices are recorded onchain.

It also already prepares for a v0.7.1 network upgrade and release.

Closes ENG-712.

[coderabbitai]

📝 Walkthrough

Walkthrough

Removes App-level PreBlocker setup and method, updates upgrade handler key to v0.7.1, switches oracle config import from skip-mev/slinky to warden-protocol/connect, and drops the slinky dependency from go.mod. Adds an unreleased changelog entry for v0.7.1.

Changes

Cohort / File(s)	Summary
Changelog update CHANGELOG.md	Added unreleased v0.7.1 entry noting a consensus-breaking change and release date.
Dependency and import migration go.mod, cmd/wardend/config/wardend_config.go	Removed github.com/skip-mev/slinky from require; updated oracle config import path to github.com/warden-protocol/connect/oracle/config (alias unchanged).
App pre-blocker and upgrade handling warden/app/app.go	Deleted SetPreBlocker invocation and removed App.PreBlocker method; updated upgrade handler key from "v0.7.0" to "v0.7.1".

Sequence Diagram(s)

sequenceDiagram
  autonumber
  participant Node as Node
  participant App as Warden App
  participant Upgrader as Upgrade Router

  rect rgb(240,245,250)
  note over App: Old flow (before this change)
  Node->>App: InitChain/Start
  App->>App: SetPreBlocker(...)
  App->>App: PreBlocker(ctx, reqFinalizeBlock)
  end

  rect rgb(245,240,245)
  note over App: New flow (after this change)
  Node->>App: InitChain/Start
  App--xApp: No SetPreBlocker
  App--xApp: PreBlocker method removed
  end

  rect rgb(240,250,245)
  note over Upgrader: Upgrade key change
  App->>Upgrader: SetUpgradeHandler("v0.7.1", handler)
  end

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Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Possibly related PRs

• fix: wrap PreBlocker to call both app preblock and oracle preblock #474 — Adjusts app PreBlocker composition; directly related to removal of App.PreBlocker.
• wardend: rename our fork of slinky #1650 — Migrates dependencies from skip-mev/slinky to warden-protocol/connect; aligns with import and go.mod changes.
• wardend: prepare release v0.7.0 #1715 — Modifies upgrade handling in app.go (adds v0.7.0); related to updating the upgrade handler to v0.7.1.

Suggested labels

protocol

Suggested reviewers

• mn13
• ijonele
• Svetomech

Pre-merge checks and finishing touches

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	You can run @coderabbitai generate docstrings to improve docstring coverage.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title Check	✅ Passed	The title concisely and accurately summarizes the primary change of enabling the Slinky pre-blocker in the oracle module, making it clear to reviewers what feature is being implemented without extraneous detail.
Description Check	✅ Passed	The pull request description clearly states the key changes to enable the slinky pre-blocker for on-chain price recording and mentions preparation for the v0.7.1 upgrade, matching the actual file changes and objectives of the PR.

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch enable-slinky-preblocker

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Actionable comments posted: 1

📜 Review details

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📥 Commits

Reviewing files that changed from the base of the PR and between d8af5b2 and f495468.

⛔ Files ignored due to path filters (1)

• go.sum is excluded by !**/*.sum

📒 Files selected for processing (4)

• CHANGELOG.md (1 hunks)
• cmd/wardend/config/wardend_config.go (1 hunks)
• go.mod (0 hunks)
• warden/app/app.go (1 hunks)

💤 Files with no reviewable changes (1)

• go.mod

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**/*.md: "Assess the documentation for misspellings, grammatical errors, missing documentation and correctness"

Files:

• CHANGELOG.md

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🔇 Additional comments (2)

warden/app/app.go (1)

879-881: LGTM! Upgrade handler correctly updated to v0.7.1.

The upgrade handler key has been properly updated from "v0.7.0" to "v0.7.1", which aligns with the changelog entry and PR objectives. The migration logic correctly invokes RunMigrations to handle module version updates.

cmd/wardend/config/wardend_config.go (1)

24-25: LGTM – import path verified. The new import github.com/warden-protocol/connect/oracle/config is present in go.mod at v1.3.0 and supplies the expected oracleconfig.AppConfig type.