fix(reset-pagination): Add user-facing same-slice error

[devin-ai-integration]

Summary

• Adds a deterministic user-facing AirbyteTracedException.message for pagination reset same-slice failures.
• Keeps the existing detailed internal_message and FailureType.system_error classification for debugging and retry behavior.
• Updates pagination tracker unit coverage to assert message, internal message, and failure type.

Resolves https://github.com/airbytehq/airbyte-internal-issues/issues/16424
Related to https://github.com/airbytehq/oncall/issues/12584

Review & Testing Checklist for Human

• Confirm Pagination reset cannot narrow the stream slice. is acceptable wording for this CDK guardrail and does not imply a user action.
• Decide whether a separate connector behavior fix is needed for the deeper Google Ads change_status pagination-progress issue noted in https://github.com/airbytehq/oncall/issues/12584.
• If this CDK change is released, verify a Google Ads prerelease can consume the updated CDK and surfaces the improved error text.

Notes

• I believe this is not a breaking change because it only populates the user-facing trace message for an existing system_error; it does not change schemas, state, config, cursor fields, or FailureType.
• No CDK version file was edited because this repository uses dynamic versioning and release notes are generated from GitHub releases.

Link to Devin session: https://app.devin.ai/sessions/b9e23ba8783445a38cf24162cbb9ca17

[devin-ai-integration]

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# Run the CLI from this branch:
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[github-actions]

PyTest Results (Fast)

4 059 tests  ±0   4 048 ✅ ±0   7m 25s ⏱️ -20s
    1 suites ±0      11 💤 ±0 
    1 files   ±0       0 ❌ ±0 

Results for commit e212364. ± Comparison against base commit d3d1346.

[github-actions]

PyTest Results (Full)

4 062 tests  ±0   4 050 ✅ ±0   10m 58s ⏱️ +2s
    1 suites ±0      12 💤 ±0 
    1 files   ±0       0 ❌ ±0 

Results for commit e212364. ± Comparison against base commit d3d1346.