FABRIC.md/ROADMAP.md/ttf_words.c: scope console REPL (4.4), obsolete M8, flip TTF to Cartesian y

FABRIC.md: renumber Artemis-last boundary 4.4 -> 4.5, add new 4.4 REPL item
(console visual design scoped this session -- CANVAS is one shared region
above the REPL strip, 640x480 scroll box centered within it, stroke font,
ANSI color, VM-identity + ACL-identity prompt segments, ~1000-line
scrollback), linked to repl-mockup.png.

ROADMAP.md: mark M8 section OBSOLETE -- replaced by FABRIC.md 4.4, kept for
history only.

ttf_words.c: TTF-TEXT's y argument now Cartesian (origin bottom-left of the
physical framebuffer, y increasing upward) instead of raw framebuffer
coordinates, translated once via fb_height() - y. Verified via amd64
screendump (logs/20260811-070418/), text renders right-side-up with
increasing y moving up the screen.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

docs/lithosananke/ROADMAP.md

@@ -17,7 +17,7 @@ M5  Timer               ██████████████████
 M6  Heap                ████████████████████ COMPLETE
 M7  VM Parity           ████████████████████ COMPLETE
 M7.1 Capsules           ████████████░░░░░░░░ DESIGN COMPLETE
-M8  REPL                ░░░░░░░░░░░░░░░░░░░░ PLANNED
+M8  REPL                ░░░░░░░░░░░░░░░░░░░░ OBSOLETE — see FABRIC.md §25.5 item 4.4
 M9  Block I/O           ░░░░░░░░░░░░░░░░░░░░ PLANNED
 M10 Networking          ░░░░░░░░░░░░░░░░░░░░ FUTURE
 ```
@@ -234,6 +234,11 @@ APIC Timer: started
 
 ## Phase 4: Interactive Forth (M8)
 
+> **⚠ OBSOLETE (2026-08-11).** This entire M8 section is superseded by
+> `FABRIC.md` §25.5 item 4.4 (REPL). The console/REPL design has moved past
+> what's scoped here — do not use this section as a source for REPL or
+> CANVAS design decisions. Kept in place for history only.
+
 ### M8: REPL + Interactive Forth
 
 **Status:** Scoped 2026-08-11 (this section). Substrate (interrupt-driven keyboard