Item ESP: tag world weapons, name ammo types, restrict crates

- Add a Weapons category and classify world weapon models (crowbar, pistol,
  revolver, SMG, AR2, shotgun, crossbow, RPG, grenade, gravity gun, stunstick,
  bugbait, sniper). Skip the active weapon and anything with a valid
  m_hOwner/m_hOwnerEntity handle so held weapons do not tag.
- Label ammo by model: pistol, SMG, AR2, .357, crossbow, shotgun, sniper,
  flares, AR2 grenade, RPG rocket and specific ammo-crate variants.
- Only item_item_crate and item_beacon_crate are supply crates; generic
  breakable crates are no longer tagged. Crate chunks stay excluded.
- Add item diagnostics: category state, prop-like entities with class/model/
  kind/distance/origin, and every item crate seen.

1 files changed, 11 insertions, 7 deletions

diff --git a/CONTEXT.md b/CONTEXT.md
index c8bc54e..56a1a65 100644
--- a/CONTEXT.md
+++ b/CONTEXT.md
@@ -82,6 +82,7 @@ Relevant vtable slots (this build):
 | `m_nModelIndex` | `0x7C` |
 | `m_vecAbsVelocity` (client local, not netvar) | `0x11C` |
 | `m_hActiveWeapon` (client netvar; server fallback `0x824`) | resolved by name |
+| `m_hOwnerEntity` / `m_hOwner` (held weapons) | resolved by name |
 
 - Eye position = `m_vecOrigin + m_vecViewOffset` on **all three axes**.
   (The old code added the X component to Z, which left the eye ~64 units low.)
@@ -271,16 +272,19 @@ vocabulary / decisions.
 ## Valuable items
 
 - Visuals feature; Active is on by default and unbound (always-on).
-- Scans the client entity list every 100 ms for item models/classes and tags
-  health, ammo, armor/suit, supply crates and generic items.
+- Scans the client entity list every 100 ms and tags health, ammo, armor/suit,
+  world weapon pickups, the two supply-crate models and generic items.
 - Each tag is a colored marker with a name and optional distance, filtered by
   category toggles and a max-distance slider. Drawn through walls and
   independently of the hostile NPC ESP.
-- Detection is model-first (`models/items/...`, `models/healthvial.mdl`,
-  `models/props_combine/*_charger*.mdl`, `models/w_longjump.mdl`) with class
-  fallbacks. Generic breakable wood/plastic/metal crates are tagged as
-  "Crate"; crate chunk debris is ignored. Weapon pickups are intentionally
-  not tagged.
+- Ammo labels are specific where the model is known: pistol, SMG, AR2, .357,
+  crossbow, shotgun, sniper, flares, AR2 grenade, RPG rocket, plus ammo-crate
+  variants. Unknown ammo falls back to "Ammo".
+- Weapons are world pickups only: the active weapon and anything with a valid
+  `m_hOwner`/`m_hOwnerEntity` handle is skipped.
+- Only `item_item_crate` and `item_beacon_crate` are tagged as supply crates.
+  Other breakable crates are intentionally ignored; crate chunk debris is
+  skipped.
 
 ## Roadmap / TODO