Phase 10: Fix all 28 code review bugs

Critical fixes:
- Screen RAM relocated from  to  (VIC register collision)
- RST8 preserved in vic_setup_mcm() (raster IRQ line 311 stability)
-  random source armed with NOISE waveform (WAIT duration variety)
- Makefile  now has real file rule (run-vice works from clean)
- .PHONY lists corrected

Medium fixes:
- DRAW fault timeout >= 500 (was > 500)
- Counter minimum now 001 (init to 0, increment before render)
- WAIT duration upper bound 250 (was 249)
- Border strobe 4 frames (was 5)
- GAMEOVER shows final score, reset on TITLE entry
- ADSR decay comments corrected
- clear_color_ram() redundant loop removed
- memmap_setup() redundant MMAP_RAM removed
- Makefile: VICE/:0/c1541 checks, setsid pgrep, ensure-oscar64
- WAIT stinger uses voice 0 (protects voice 2 for RNG)

Low fixes:
- WHACKED references updated to Nyuller
- font arrays use unsigned char
- memmap_restore() documented as unused
- PROG_C64.md banking table corrected
- Makefile: clean @ prefix, help docs, OPT guard
- Audio schedule off-by-one corrected (+1 frame/note)

PROG_C64.md

@@ -125,8 +125,8 @@ is also the CPU's bank-switch latch. The bit meanings:
 
 | Bit | Name | Effect |
 |-----|------|--------|
-| 0 | LORAM | 0=RAM at $A000-$BFFF, 1=BASIC ROM |
-| 1 | HIRAM | 0=RAM at $E000-$FFFF, 1=KERNAL ROM |
+| 0 | LORAM | Controls $A000-$BFFF (with HIRAM): 1+BASIC ROM visible |
+| 1 | HIRAM | 0=RAM at $E000-$FFFF, 1=KERNAL ROM. Also gates BASIC ROM. |
 | 2 | CHAREN | 0=CHAR ROM at $D000-$DFFF, 1=I/O (default) |
 | 3 | Cassette Data Out |
 | 4 | Cassette Switch Sense |
@@ -156,7 +156,7 @@ prefetch), but you almost never need to.
 | $0300-$03FF | More KERNAL/BASIC pointers; **$0314-$0315 = IRQ vector, $0316-$0317 = BRK vector, $0318-$0319 = NMI vector** |
 | $0400-$07FF | Screen RAM (1000 bytes for the 40×25 text screen) |
 | $0800-$9FFF | Free BASIC program storage (38911 bytes) |
-| $A000-$BFFF | BASIC ROM (8 KB, visible iff LORAM=1) |
+| $A000-$BFFF | BASIC ROM (8 KB, visible iff LORAM=1 AND HIRAM=1) |
 | $C000-$CFFF | Free for ML programs |
 | $D000-$D3FF | VIC-II registers (47 of them, mirrored every 64 bytes) |
 | $D400-$D7FF | SID registers (mirrored every 32 bytes; not on C128) |