Merge #1887: refactor: migrate peer-id to published torrust-peer-id 0.1.0

f0f651f fix: remove peer-id references from Containerfile (Jose Celano)
f4cdfac refactor: restore deprecated peer_id module for backwards compatibility (Jose Celano)
dac713b docs: link PR #1887 in issue #1884 spec (Jose Celano)
96f1359 docs: update EPIC #1669 tables reflecting peer-id extraction (Jose Celano)
091e0ba docs: mark issue #1884 as implemented, update acceptance criteria (Jose Celano)
2d63158 refactor: migrate peer-id to published torrust-peer-id 0.1.0 (Jose Celano)
d48ad9a docs(tracker-core): update issue #1884 spec with license decision (Jose Celano)

Pull request description:

  Migrate the `bittorrent-peer-id` path dependency to the published `torrust-peer-id` 0.1.0 crate.

  ## Summary
  - Replaced `bittorrent-peer-id` path deps in `http-protocol`, `primitives`, and `udp-protocol` with `torrust-peer-id = "0.1.0"` from crates.io
  - Renamed all Rust `use bittorrent_peer_id` statements to `use torrust_peer_id`
  - Removed `packages/primitives/src/peer_id.rs` thin re-export module; `lib.rs` now directly re-exports from `torrust_peer_id`
  - Deleted the entire `packages/peer-id/` directory
  - Updated `AGENTS.md` package catalog
  - Updated issue spec #1884 and EPIC #1669 tables

  ## Why
  The `torrust-peer-id` crate was extracted to `torrust/torrust-bittorrent`, published under Apache-2.0 (matching the upstream `aquatic_peer_id` license). It has zero workspace dependencies and was the first in the `bittorrent-*` extraction sequence (EPIC #1669).

  ## Verification
  - [x] `cargo check --workspace` — pass
  - [x] `cargo test --tests --workspace --all-targets --all-features` — pass
  - [x] `cargo test --doc --workspace` — pass
  - [x] `linter all` — pass
  - [x] `cargo machete --with-metadata` — pass
  - [x] Pre-push hook (format, check, doc, test) — pass

  Closes #1884

ACKs for top commit:
  josecelano:
    ACK f0f651f

Tree-SHA512: e479c4bbee166246d3f061b409fb1b244a5ac32521f8cbb2038b96a5daa973076a20badf9033419cafaf49d6ebba8d473b9c90dea52d933c71f830f1fe9162d2

Author: josecelano

AGENTS.md

@@ -72,7 +72,6 @@ All packages live under `packages/`. The workspace version is `3.0.0-develop`.
 | `http-tracker-core`               | `torrust-tracker-http-tracker-core`               | `*-core`       | HTTP-specific tracker domain logic            |
 | `located-error`                   | `torrust-located-error`                           | utilities      | Diagnostic errors with source locations       |
 | `metrics`                         | `torrust-metrics`                                 | domain         | Prometheus metrics integration                |
-| `peer-id`                         | `bittorrent-peer-id`                              | domain         | Peer ID parsing and formatting utilities      |
 | `primitives`                      | `torrust-tracker-primitives`                      | domain         | Core domain types (InfoHash, PeerId, ...)     |
 | `rest-api-client`                 | `torrust-tracker-rest-api-client`                 | client tools   | REST API client library                       |
 | `rest-api-core`                   | `torrust-tracker-rest-api-core`                   | client tools   | REST API core logic                           |

Cargo.lock

@@ -78,7 +78,6 @@ COPY packages/http-tracker-core/Cargo.toml packages/http-tracker-core/
 COPY packages/located-error/Cargo.toml packages/located-error/
 COPY packages/metrics/Cargo.toml packages/metrics/
 COPY packages/net-primitives/Cargo.toml packages/net-primitives/
-COPY packages/peer-id/Cargo.toml packages/peer-id/
 COPY packages/primitives/Cargo.toml packages/primitives/
 COPY packages/rest-api-client/Cargo.toml packages/rest-api-client/
 COPY packages/rest-api-core/Cargo.toml packages/rest-api-core/
@@ -127,7 +126,6 @@ RUN mkdir -p \
       packages/located-error/src \
       packages/metrics/src \
       packages/net-primitives/src \
-      packages/peer-id/src \
       packages/primitives/src \
       packages/rest-api-client/src \
       packages/rest-api-core/src \
@@ -170,7 +168,6 @@ RUN mkdir -p \
       packages/located-error/src/lib.rs \
       packages/metrics/src/lib.rs \
       packages/net-primitives/src/lib.rs \
-      packages/peer-id/src/lib.rs \
       packages/primitives/src/lib.rs \
       packages/rest-api-client/src/lib.rs \
       packages/rest-api-core/src/lib.rs \

Containerfile

@@ -94,12 +94,6 @@ The workspace currently contains **27 packages** (including the root `torrust-tr
 | No                     | `torrust-tracker-udp-tracker-protocol`            | `udp-protocol`                    |
 | No                     | `torrust-tracker-udp-server`                      | `udp-server`                      |
 
-### `bittorrent-` prefix
-
-| Published on crates.io | Crate Name           | Folder    |
-| ---------------------- | -------------------- | --------- |
-| No                     | `bittorrent-peer-id` | `peer-id` |
-
 **Observation**: only 6 of 27 packages are currently published on crates.io, all of which
 carry the `torrust-tracker-` prefix. Every `bittorrent-` and `torrust-axum-` crate is
 unpublished. This confirms issue #1659's note that "many new crates have not been published
@@ -233,7 +227,7 @@ Notes:
 1. Will be replaced by the newer `contrib/bencode` code from tracker.
 2. May be inlined into consumers rather than published independently.
 3. Migrates newer tracker implementation and replaces old `packages/bencode`.
-4. No workspace deps; first in the `bittorrent-*` extraction sequence.
+4. **Completed June 2026**: `torrust-peer-id 0.1.0` published to crates.io from `torrust/torrust-bittorrent`. Tracker consumers migrated; `packages/peer-id` removed from tracker workspace.
 5. Migrate `InfoHash` here; then archive `torrust/bittorrent-primitives`.
 
 The following crates remain in `torrust/torrust-tracker` for now:
@@ -542,7 +536,7 @@ Status: TODO unless noted.
 - [x] [#1834](https://github.com/torrust/torrust-tracker/issues/1834) SI-13: Decouple `http-protocol` from `udp-protocol` _(Rule M; remove cross-protocol dependency edge)_
 - [x] [#1835](https://github.com/torrust/torrust-tracker/issues/1835) SI-14: Decouple `http-protocol` from `torrust-tracker-primitives` _(Rule M; remove protocol -> domain coupling as step 2)_
 - [ ] [#1882](https://github.com/torrust/torrust-tracker/issues/1882) SI-18: Extract `torrust-metrics` to standalone repository _(Rule E; requires completed metrics rename work)_
-- [ ] [#1884](https://github.com/torrust/torrust-tracker/issues/1884) SI-19: Move `bittorrent-peer-id` to `torrust/torrust-bittorrent` as `torrust-peer-id` _(Rule E; no workspace deps; first `bittorrent-*` extraction)_
+- [x] [#1884](https://github.com/torrust/torrust-tracker/issues/1884) SI-19: Move `bittorrent-peer-id` to `torrust/torrust-bittorrent` as `torrust-peer-id` _(Rule E; no workspace deps; first `bittorrent-*` extraction)_
 - [ ] [#1885](https://github.com/torrust/torrust-tracker/issues/1885) SI-20: Extract `torrust-net-primitives` to standalone repository _(Rule E; no workspace deps; no prerequisites)_
 
 #### 4. Other Tracked Items (Drafts and Promoted Issues)
@@ -574,7 +568,7 @@ Details:
 | Located error rename       | [#1823](https://github.com/torrust/torrust-tracker/issues/1823) — Rename `torrust-tracker-located-error` to `torrust-located-error`                                              | [docs/issues/closed/1823-1669-10-rename-torrust-tracker-located-error-to-torrust-located-error.md](../../closed/1823-1669-10-rename-torrust-tracker-located-error-to-torrust-located-error.md) | DONE   | Rule P; completed                                                                                                                             |
 | README refresh             | #TBD — Update all package READMEs                                                                                                                                                | [docs/issues/drafts/1669-update-all-package-readmes.md](../../drafts/1669-update-all-package-readmes.md)                                                                                       | TODO   | Documentation; requires completed rename work; before extraction work                                                                         |
 | Bencode migration          | [#1881](https://github.com/torrust/torrust-tracker/issues/1881) SI-16: Migrate `contrib/bencode` to `torrust/torrust-bittorrent` as `torrust-bencode`                            | [docs/issues/closed/1881-1669-16-migrate-contrib-bencode-to-torrust-bittorrent/ISSUE.md](../../closed/1881-1669-16-migrate-contrib-bencode-to-torrust-bittorrent/ISSUE.md)                     | DONE   | Rule E; torrust-bencode 3.0.0 published; contrib/bencode removed from tracker workspace                                                       |
-| Peer-ID move               | [#1884](https://github.com/torrust/torrust-tracker/issues/1884) — Move `bittorrent-peer-id` to `torrust/torrust-bittorrent` as `torrust-peer-id`                                 | [docs/issues/open/1884-1669-19-move-bittorrent-peer-id-to-torrust-bittorrent.md](../../open/1884-1669-19-move-bittorrent-peer-id-to-torrust-bittorrent.md)                                     | TODO   | Rule E; no workspace deps in crate; 3 consumers to migrate; first `bittorrent-*` extraction sequence item                                     |
+| Peer-ID move               | [#1884](https://github.com/torrust/torrust-tracker/issues/1884) — Move `bittorrent-peer-id` to `torrust/torrust-bittorrent` as `torrust-peer-id`                                 | [docs/issues/open/1884-1669-19-move-bittorrent-peer-id-to-torrust-bittorrent.md](../../open/1884-1669-19-move-bittorrent-peer-id-to-torrust-bittorrent.md)                                     | DONE   | Rule E; published as torrust-peer-id 0.1.0 on crates.io; 3 tracker consumers migrated; packages/peer-id removed                               |
 | Clock extraction           | [#1879](https://github.com/torrust/torrust-tracker/issues/1879) — Extract `torrust-clock` to standalone repository                                                               | [docs/issues/closed/1879-1669-17-extract-torrust-clock-to-standalone-repo.md](../../closed/1879-1669-17-extract-torrust-clock-to-standalone-repo.md)                                           | DONE   | Rule E; torrust-clock v3.0.0 published; 13 consumers migrated; packages/clock removed                                                         |
 | Metrics extraction         | [#1882](https://github.com/torrust/torrust-tracker/issues/1882) — Extract `torrust-metrics` to standalone repository                                                             | [docs/issues/open/1882-1669-18-extract-torrust-metrics-to-standalone-repo.md](../../open/1882-1669-18-extract-torrust-metrics-to-standalone-repo.md)                                           | TODO   | Rule E; requires completed metrics rename; 7 workspace consumers to migrate                                                                   |
 | Net-primitives extraction  | [#1885](https://github.com/torrust/torrust-tracker/issues/1885) — Extract `torrust-net-primitives` to standalone repository                                                      | [docs/issues/open/1885-1669-20-extract-torrust-net-primitives-to-standalone-repo.md](../../open/1885-1669-20-extract-torrust-net-primitives-to-standalone-repo.md)                             | TODO   | Rule E; no workspace deps; no prerequisites; 10 consumers to migrate; new repo torrust/torrust-net-primitives                                 |