docs(macroplan): split each version into its own page

Move each version's scope checklist and status out of the monolithic
macroplan into a dedicated docs/vX.Y-<slug>.md page; macroplan keeps the
source block, the rollup status, and a one-line summary + link per
version. v0.1 reuses its existing product/technical pages.

Also drop the "Optional column ruler at 80" requirement from v0.6.

docs/v0.2.5-international-input.md

@@ -0,0 +1,25 @@
+# v0.2.5 — International input
+
+> Part of the [Typoena macro plan](macroplan.md). Requirements and targets:
+> [qfd.md](qfd.md). Load-bearing decisions: [adr.md](adr.md).
+
+**Status:** DONE in core, **hardware-verified 2026-07-11** (typed ç é è ñ on the
+bench, no crash). US-International dead-key accent composition lives in the
+`keymap` crate — a `Composer` downstream of the decoder — wired into
+`usb_kbd.rs` so the editor still receives a single `Key::Char`. Builds on the
+[v0.2](v0.2-navigation.md) UTF-8-correct buffer and the ISO-8859-15 render font.
+Host-tested.
+
+- [x] Dead keys — grave, acute, circumflex, diaeresis, tilde — compose with
+      the next letter: à é ê ë ñ, ç (via `'`+c), both cases
+- [x] `'`+space emits a literal apostrophe (the everyday apostrophe path); a
+      dead key followed by a non-composing letter emits the accent then the
+      letter
+- [x] A non-character event (Enter, Backspace, arrows) flushes any pending
+      accent as its literal first
+- [ ] ~~Pending-accent indicator in the side-panel status strip~~ — **DROPPED
+      (2026-07-11 decision):** at typing speed it would be stale before the
+      ~630 ms panel repaint, so it conveys nothing. Left unbuilt on purpose.
+- [x] Bonus (2026-07-11): the physical **Esc key** (HID 0x29) now types
+      `` ` ``/`~` — Esc comes from the Caps tap — so grave/tilde accents and
+      Markdown code fences are reachable on a 60% board without a Fn layer.