Docs/cleanup: refresh CONTEXT, update ISurface status, remove dead code

- rewrite CONTEXT.md for the current architecture, interfaces, netvars,
  menu tree, bones/ESP, aimbot/vischeck, triggerbot, silent aim and ABH
- update ISURFACE_STATUS.md: DrawLine slot, current menu/config path,
  9 build TUs, current file layout
- remove the stale root-level `tree` file
- drop unused class_health_off/per-class health scan (NPC HP is not
  networked), surf_call_slot, and unused scancode helpers

1 files changed, 23 insertions, 13 deletions

diff --git a/src/ISURFACE_STATUS.md b/src/ISURFACE_STATUS.md
index de952cd..00a7adf 100644
--- a/src/ISURFACE_STATUS.md
+++ b/src/ISURFACE_STATUS.md
@@ -1,13 +1,13 @@
 # HL2hake ISurface Drawing — Status Report
 
-## Date: 2026-09-12 (final round)
+## Date: 2026-09-12, updated 2026-10-26
 
 ## Result: WORKING
 
 Overlay drawing works in-game and in menus. Draw path: `PaintTraverseEx`
 hook (slot 114) on the copied ISurface vtable, wrapping our draws in
 `PushMakeCurrent(panel, false)` / `PopMakeCurrent(panel)` around ISurface
-slots 6/10/12/17/18/20/22/66/67.
+slots 6/10/12/15/17/18/20/22/66/67.
 
 ## Confirmed ISurface VTable Slots (disassembly-verified, binary=SDK header+4)
 
@@ -18,6 +18,8 @@ slots 6/10/12/17/18/20/22/66/67.
 | 9    | `PopMakeCurrent(VPANEL)`                  | verified via disassembly |
 | 10   | `DrawSetColor(int r,g,b,a)`               | stores RGBA at `this+0x24..0x27` |
 | 12   | `DrawFilledRect(int x0,y0,x1,y1)`         | verified via disassembly |
+| 14   | `DrawOutlinedRect(int x0,y0,x1,y1)`       | SDK header 10 + 4 |
+| 15   | `DrawLine(int x0,y0,x1,y1)`               | SDK header 11 + 4 (skeleton ESP) |
 | 17   | `DrawSetTextFont(HFont)`                  | stores HFont at `this+0x290` |
 | 18   | `DrawSetTextColor(int r,g,b,a)`           | stores RGBA at `this+0x28..0x2b` |
 | 20   | `DrawSetTextPos(int x,y)`                 | stores at `this+0x2c/0x30` |
@@ -65,24 +67,27 @@ fc-match findings (system fontconfig):
 
 ## Menu
 
-- Tree: HL2hake → Bunnyhop/ABH, children indented (`g_depth[]`, +12px/level).
-- Right-aligned state at x=200: `[on]`/`[off]` for Active rows,
-  `[keyname]` for Bind rows, `[press key]` while binding.
+- Starts fully collapsed on first open; `Insert` toggles it.
+- Tree: HL2hake -> Bunnyhop (Active, Auto-strafe), ABH (Active), ESP (Active,
+  Show neutral/healthbar/healthnum/name/skeleton/box), Aimbot (Active, Bind,
+  Vischeck, Bones, Smoothness), Triggerbot (Active, Bind), Silent aim
+  (Active, Bind). Children indented by `g_depth[]` (+12px/level).
+- Right-aligned state at x=270: `[on]`/`[off]` for toggles, `[keyname]` for
+  binds, `[press key]` while binding, `N deg/tick` for values.
 - Feature gating: `feature_active(int)` (menu.cpp) — active AND
-  (bind==0 or key held). Called from `do_move` (hl2h.cpp) to gate
-  bhop (jump) and ABH branches.
-- Config: INI at `~/.hl2hake.ini` (bhop/abh active+bind).
+  (bind==0 or key held), used by `do_move` and the aim features.
+- Config: `$XDG_CONFIG_HOME/hl2hake/config` (fallback `~/.config/hl2hake/config`).
 
 ## Build / Run
 
-- `./build.sh`: g++ `-m32 -O2 -fPIC -shared`, links 5 TUs, `-ldl`,
+- `./build.sh`: g++ `-m32 -O2 -std=c++17 -fPIC -shared`, 9 TUs
+  (`hl2h modules cinput netvars menu esp server bones vischeck`), `-ldl`,
   `-Wall -Wextra -Werror` (all warnings fatal).
 - `./play.sh -windowed +map d1_trainstation_01` (Steam runtime wrapper,
   `LD_PRELOAD=libhl2hake.so`).
-- Logs: `/tmp/hl2hake.log` (logf), `/tmp/hl2run.log` (stderr).
-- Probe logging (`hook fired:`, `probe:`) removed 2026-09-12.
+- Logs: `/tmp/hl2hake.log` (logf), stderr.
 - `HL2H_DRAW_TEST=1` env: draws red rect + "HL2H DRAW TEST" without
-  opening the menu.
+  opening the menu. `HL2H_BONE_DEBUG=1` draws head-hitbox markers.
 
 ## Lessons
 
@@ -98,7 +103,12 @@ fc-match findings (system fontconfig):
 ## File Locations
 
 - Project: `/home/salmon/Documents/rust/hl2h/`
-- Hook + feature logic: `src/hl2h.cpp`
+- Hook + movement/feature logic: `src/hl2h.cpp`
 - Menu + drawing + config + input: `src/menu.cpp`
+- ESP / skeleton drawing / aimbot / silent aim: `src/esp.cpp`
+- Bones + hitboxes: `src/bones.cpp`
+- Server-side entity/health access: `src/server.cpp`
+- World vischeck / entity trace: `src/vischeck.cpp`
 - Shared API: `src/hl2h.h`
+- Current project overview: `CONTEXT.md`
 - SDK headers: `source-sdk-2013/src/public/vgui/`