docs: migrate TextForSpeech roadmap backlog

Why:
The retired repository must not remain the only record of unfinished normalization and summarization work.

Verification:
- Reconciled SpeakSwiftly issues #111, #112, and #114-#119
- Confirmed TextForSpeech has no open GitHub issues
- git diff --check

Author: gaelic-ghost

docs/maintainers/textforspeech-roadmap-migration-2026-07-19.md

@@ -0,0 +1,45 @@
+# TextForSpeech Roadmap Migration
+
+This ledger records where every unfinished item in the frozen TextForSpeech
+`ROADMAP.md` moved after normalization and summarization became the internal
+`SpeakSwiftlyNormalization` target in SpeakSwiftly 12.
+
+## Issue Inventory
+
+TextForSpeech has no open GitHub issues. Its only historical issue, #33,
+was already closed before retirement. SpeakSwiftly issues
+[#111](https://github.com/gaelic-ghost/SpeakSwiftly/issues/111) and
+[#112](https://github.com/gaelic-ghost/SpeakSwiftly/issues/112) already tracked
+the two downstream Markdown projection requests and were updated in place
+instead of duplicated.
+
+## Roadmap Mapping
+
+| TextForSpeech source | SpeakSwiftly destination | Coverage |
+| --- | --- | --- |
+| Product principles | Milestone 35 and issues [#114](https://github.com/gaelic-ghost/SpeakSwiftly/issues/114), [#116](https://github.com/gaelic-ghost/SpeakSwiftly/issues/116), and [#117](https://github.com/gaelic-ghost/SpeakSwiftly/issues/117) | Deterministic shared normalization, namespace-first API discovery, and detection plus documented style behavior are acceptance constraints rather than separate feature work. |
+| Milestone 5: Structured Source Normalization | [#114](https://github.com/gaelic-ghost/SpeakSwiftly/issues/114) | SwiftSyntax adoption, structured Swift traversal, generic fallback, representative tests, Python and Rust category decision, documentation, and future language-lane extensibility. |
+| Milestone 7: Release and Maintainability Polish | [#118](https://github.com/gaelic-ghost/SpeakSwiftly/issues/118) | Post-consolidation source-role audit, scanability, and current public and maintainer architecture docs. |
+| Milestone 8: Summary-Aware Normalization Requests | [#115](https://github.com/gaelic-ghost/SpeakSwiftly/issues/115) | Live provider checks or examples, caller guidance, and the first-class summary-model-selection decision. |
+| Milestone 8.1 deferred follow-up | [#119](https://github.com/gaelic-ghost/SpeakSwiftly/issues/119) | Conditional Foundation Models prompt-risk preflight with its downstream-need trigger preserved. |
+| Milestone 9: Public API Model Cleanup | [#116](https://github.com/gaelic-ghost/SpeakSwiftly/issues/116) | Persistence archive contract, narrower lifecycle APIs, common replacement authoring, advanced rule access, docs, tests, and release guidance. |
+| Milestone 10: Style-Based Normalization Behavior | [#117](https://github.com/gaelic-ghost/SpeakSwiftly/issues/117) | Semantic-run audit, additional `NSDataDetector` kinds, default-spoken-kind decision, developer-token independence, per-family tests, and compact, balanced, and explicit behavior. |
+| Milestone 10: Codex Hook Review | [#111](https://github.com/gaelic-ghost/SpeakSwiftly/issues/111), [#112](https://github.com/gaelic-ghost/SpeakSwiftly/issues/112), and [#119](https://github.com/gaelic-ghost/SpeakSwiftly/issues/119) | Proven shared Markdown table and section projection needs are concrete issues; any additional hook behavior remains trigger-gated. |
+| Backlog: languages beyond Swift | [#119](https://github.com/gaelic-ghost/SpeakSwiftly/issues/119), with implementation shaped by [#114](https://github.com/gaelic-ghost/SpeakSwiftly/issues/114) | Preserve the decision without adding speculative parsers before Swift proves the shared shape. |
+| Backlog: public nested source-format inspection | [#119](https://github.com/gaelic-ghost/SpeakSwiftly/issues/119) | Preserve the concrete-caller trigger without expanding the public API now. |
+
+## Explicitly Retired Items
+
+- The TextForSpeech “next minor release” work completed with the final
+  `v0.23.0` retirement release. It is not carried forward as a false
+  SpeakSwiftly task.
+- GitHub repository archival remains unchecked in TextForSpeech because it
+  requires separate explicit approval. It is not part of Milestone 35 and this
+  migration does not archive, delete, or rewrite the frozen repository.
+
+## Completion Rule
+
+Milestone 35 is complete when each mapped issue is implemented, explicitly
+retired with durable rationale, or remains intentionally trigger-gated in
+#119, and when an organization-wide dependency audit confirms no active
+consumer still resolves or imports TextForSpeech.