Rename proposals to follow PROM-53 design; link old files for compat.

[bwplotka]

Implements https://github.com/prometheus/proposals/blob/main/proposals/0053-proposal-ids.md

[Copilot]

Pull Request Overview

This PR renames existing proposal files to follow the PROM- scheme defined in PROM-53, and updates the 0053-proposal-ids.md to mark the renaming task as completed. Each old proposal file is left in place as a minimal redirect pointing to its new numbered filename.

• key changes:
  • Replace full proposal contents with a single redirect line in each legacy file.
  • Update 0053-proposal-ids.md to mark the rename step as done.

Reviewed Changes

Copilot reviewed 27 out of 27 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
proposals/2025-02-24_secret_providers.md	Legacy file now redirects to 0047-secret_providers.md
proposals/2025-01-02_direct-io.md	Legacy file now redirects to 0045-direct-io.md
proposals/2024-12-04_prombench-custom-benchmarks.md	Legacy file now redirects to 0041-prombench-custom-benchmarks.md
proposals/2024-09-25_metadata-labels.md	Legacy file now redirects to 0039-metadata-labels.md
proposals/2024-07-15-otel-resource-attribute-promotion.md	Legacy file now redirects to 0038-otel-resource-attribute-promotion.md
proposals/2024-04-10_native-support-for-info-metrics-metadata.md	Legacy file now redirects to 0037-native-support-for-info-metrics-metadata.md
proposals/2024-01-29_native_histograms_text_format.md	Legacy file now redirects to 0032-native_histograms_text_format.md
proposals/2024-01-26_classic-histograms-stored-as-native-histograms.md	Legacy file now redirects to 0031-classic-histograms-stored-as-native-histograms.md
proposals/2023-11-13-utf8-migration.md	Legacy file now redirects to 0030-utf8-migration.md
proposals/2023-08-21-utf8.md	Legacy file now redirects to 0028-utf8.md
proposals/2023-06-13_created-timestamp.md	Legacy file now redirects to 0029-created-timestamp.md
proposals/2022-11-23_proposal-process.md	Legacy file now redirects to 0001-proposal-process.md
proposals/2019-02-21_am-secure-cluster.md	Legacy file now redirects to 0002-am-secure-cluster.md
proposals/0053-proposal-ids.md	Marked the renaming step completed ([x])

Comments suppressed due to low confidence (12)

proposals/2024-12-04_prombench-custom-benchmarks.md:2

• Remove the stray 1 on line 1 of the redirect file—it appears to be an unintended leftover and does not convey useful information.

> IMPORTANT: This document was moved to [0041-prombench-custom-benchmarks.md](./0041-prombench-custom-benchmarks.md)

proposals/2024-01-26_classic-histograms-stored-as-native-histograms.md:2

• Remove the stray 1 on line 1 of the redirect file—it appears to be an unintended leftover and does not convey useful information.

> IMPORTANT: This document was moved to [0031-classic-histograms-stored-as-native-histograms.md](./0031-classic-histograms-stored-as-native-histograms.md)

proposals/2022-11-23_proposal-process.md:2

• Remove the stray 1 on line 1 of the redirect file—it appears to be an unintended leftover and does not convey useful information.

> IMPORTANT: This document was moved to [0001-proposal-process.md](./0001-proposal-process.md)