docs: ASCII typography and style normalization across all repo text

Replace every em dash with real punctuation (rewrites, not hyphen swaps)
in docs, code comments, scripts, configs, and the port records; convert
en dashes, curly quotes, ellipsis glyphs, arrows, and section signs to
ASCII; drop machine-writing tell phrases from living docs. ADR titles
now use a colon. The M2 bring-up DTS model string carried an em dash
into the patch series and its record echoes; fixed at both, and the full
series re-verified to apply cleanly onto pristine 6.18.46. One comment
in freshness.h deliberately names the em dash glyph the UI renders as
the unknown mark; that is data, kept as prose naming it.

Verified: cargo tests (sim, config-lint, rs485-bridge), shellcheck,
both driver MC/DC harnesses, patches-apply.

kernel/rv1106-enablement/wifi/VERIFIED-on-c8a3.md

@@ -1,4 +1,4 @@
-# AIC8800 wifi — VERIFIED on warden-c8a3 (self-built 6.18.46), 2026-08-25
+# AIC8800 wifi: VERIFIED on warden-c8a3 (self-built 6.18.46), 2026-08-25
 
 **Result: wifi works end-to-end on our self-built Linux 6.18.46.** Modules built
 from the ported source (vermagic `6.18.46 SMP mod_unload ARMv7 p2v8`), loaded on
@@ -6,39 +6,39 @@ the panel, downloaded firmware to the AIC8800DC, created `wlan0`, and completed
 live RF scan.
 
 ## Evidence (serial console, _b slot = our 6.18 kernel)
-- `insmod aic8800_bsp.ko`  → firmware download OK: `aicwf_patch_config_8800dc done`,
+- `insmod aic8800_bsp.ko`  -> firmware download OK: `aicwf_patch_config_8800dc done`,
   `Start app: 00120000`, BSP_RC=0.
-- `insmod aic8800_fdrv.ko` → `ieee80211 phy0: HT supp 1, VHT supp 1, HE supp 1`,
+- `insmod aic8800_fdrv.ko` -> `ieee80211 phy0: HT supp 1, VHT supp 1, HE supp 1`,
   FDRV_RC=0.
 - `wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> ... link/ether <device MAC>`
 - `iw dev wlan0 scan` found real APs (SSIDs/BSSIDs redacted for publication):
-  - **the site AP at 2412 MHz, −43 dBm**
-  - a neighboring guest AP at 2412 MHz, −73 dBm
-  - +several more, correct signal strengths → RF path fully functional.
+  - **the site AP at 2412 MHz, -43 dBm**
+  - a neighboring guest AP at 2412 MHz, -73 dBm
+  - +several more, correct signal strengths -> RF path fully functional.
 
 ## Why MODULES, not built-in (=y)
 Built-in device_initcalls run BEFORE the dw_mmc/SDIO controller probes. Initcalls
-are sequential: `aicbsp_init` blocked 3.3–7.5 s doing the eager chip bring-up, and
-the mmc controller only probed at 7.9 s (SDIO card at 8.2 s) — AFTER aicbsp had
-already given up (`aicsdio.c:597` 2 s `down_timeout` → `sdio_unregister_driver`).
+are sequential: `aicbsp_init` blocked 3.3-7.5 s doing the eager chip bring-up, and
+the mmc controller only probed at 7.9 s (SDIO card at 8.2 s), AFTER aicbsp had
+already given up (`aicsdio.c:597` 2 s `down_timeout` -> `sdio_unregister_driver`).
 Extending the timeout can't help (aicbsp blocks the very mmc probe that would
-enumerate the card — a deadlock). Loaded as modules AFTER boot (mmc up, card at
+enumerate the card, a deadlock). Loaded as modules AFTER boot (mmc up, card at
 4 s), `insmod aic8800_bsp` registers the SDIO driver against an already-present
-card → probe fires immediately → firmware download → fdrv → wlan0. This is the
+card -> probe fires immediately -> firmware download -> fdrv -> wlan0. This is the
 vendor-proven flow.
 
 ## Kernel-size fix (needed to boot the wifi kernel at all)
 The wifi kernel grew the gzip zImage to 12.12 MB; rockchip U-Boot loads the kernel
 blob at 0x8000 and relocates the DTB to 0xc00000 (12 MB), so a >~11.95 MB zImage
 overruns the FDT at U-Boot load time (`Sysmem Error: KERNEL overlap with FDT`) and
-FLARE-AB falls back to _a. Switched `CONFIG_KERNEL_GZIP` → `CONFIG_KERNEL_XZ`:
-zImage 12.12 MB → 8.15 MB (module build), ~4 MB headroom under the FDT. Also the
+FLARE-AB falls back to _a. Switched `CONFIG_KERNEL_GZIP` -> `CONFIG_KERNEL_XZ`:
+zImage 12.12 MB -> 8.15 MB (module build), ~4 MB headroom under the FDT. Also the
 right call for a firmware kernel. (Uncompressed Image is ~30 MB; the ARM
 decompressor relocates the FDT at runtime, so only the U-Boot LOAD-time overlap
-mattered — proven by the kernel booting once the zImage fit.)
+mattered: proven by the kernel booting once the zImage fit.)
 
-## Boot-time auto-load (follow-up, deployment layer — not the kernel port)
+## Boot-time auto-load (follow-up, deployment layer, not the kernel port)
 Modules were insmod'd manually for this verify. Production auto-load needs a
-loader that inserts `aic8800_bsp.ko` → `aic8800_fdrv.ko` (→ `aic8800_btlpm.ko`) in
+loader that inserts `aic8800_bsp.ko` -> `aic8800_fdrv.ko` (-> `aic8800_btlpm.ko`) in
 order from wherever they're staged; the vendor `insmod_wifi.sh` references a
 different variant (`aic_load_fw.ko`/`bcmdhd.ko`, absent here). Track in the rootfs.