refactor: group scripts into walker/ wikigen/ bundle/

Organize the 16 loose scripts by concern:
  walker/  -- .wbt save tooling (sand, build_wbt, walker_hashes,
              harvest_hashes, recover_key)
  wikigen/ -- MediaWiki page generators (make_*_wiki, render_wiki)
  bundle/  -- Unity/Odin asset extraction (unitybundle, odin_read,
              extract_*, loot_probe, dump_loot_bytes)

The only cross-script imports (build_wbt->walker_hashes,
extract_loot->odin_read) live within the same folder, so each
script's dir on sys.path[0] keeps them resolving with no code
changes. All data paths are absolute, so the moves don't affect
I/O. Named the code dir wikigen/ to avoid colliding with the
generated wiki/ output dir; ignore the regenerable wiki_site/ render.

wikigen/make_crafting_wiki.py

@@ -0,0 +1,132 @@
+#!/usr/bin/env python3
+"""Generate a MediaWiki crafting page from extracted/crafting_recipes.json."""
+import json, re, os
+
+EX = '/home/downloadpizza/sand_tools/extracted'
+WIKI = '/home/downloadpizza/sand_tools/wiki'
+SRC = os.path.join(EX, 'crafting_recipes.json')
+NAMES = os.path.join(EX, 'item_names.json')
+OUT = os.path.join(WIKI, 'Crafting.mediawiki')
+
+STATION_SHORT = {
+    'Recipes_Utility_Workbench_T1':  'Sewing (Utility)',
+    'Recipes_Armament_Workbench_T1': 'Armaments T1',
+    'Recipes_Armament_Workbench_T2': 'Armaments T2',
+}
+
+# real in-game display names (I2 localization); fall back to humanize() if absent
+_NAMES = json.load(open(NAMES))['items'] if os.path.exists(NAMES) else {}
+def display(item_id):
+    n = _NAMES.get(item_id, {}).get('name')
+    return n if n else humanize(item_id)
+
+STATIONS = {
+    'Recipes_Utility_Workbench_T1':  ('Utility / Sewing recipes (fabric, armour, food, valuables)', 1),
+    'Recipes_Armament_Workbench_T1': ('Armaments recipes — Tier 1 (basic ammo & weapons)', 2),
+    'Recipes_Armament_Workbench_T2': ('Armaments recipes — Tier 2 (advanced ammo & weapons)', 3),
+    'TestRecipesBundle':             ('Test recipes (debug)', 99),
+}
+
+ALIAS = {'item_coinCrown': 'Crown'}
+
+def camel_split(s):
+    return re.findall(r'[A-Za-z][a-z]*\d*', s)
+
+def words(tok):
+    return ' '.join(w.upper() if re.match(r'^[A-Za-z]\d+$', w)   # T2, C4
+                    else w[:1].upper() + w[1:] for w in camel_split(tok))
+
+def humanize(item_id):
+    if item_id in ALIAS: return ALIAS[item_id]
+    s = item_id
+    is_item = s.startswith('item_')
+    if is_item: s = s[5:]
+    toks = s.split('_')
+    if toks[0].startswith('resource'): toks[0] = toks[0][len('resource'):]
+    # item_* IDs use camelCase base + underscore variants; bare IDs use underscore as space
+    if is_item and len(toks) > 1:
+        return words(toks[0]) + ' (' + ', '.join(words(v) for v in toks[1:]) + ')'
+    return ' '.join(words(t) for t in toks)
+
+def link(item_id):
+    return f'[[{display(item_id)}]]'
+
+def ingredients(lst):
+    return ' + '.join(f"{i['amount']} × {link(i['itemId'])}" for i in lst)
+
+def outputs(lst):
+    return ' + '.join(f"{o['amount']} × {link(o['itemId'])}" for o in lst)
+
+def fmt_time(t):
+    return f"{int(t)}s" if t == int(t) else f"{t}s"
+
+def table(recs):
+    rows = ['{| class="wikitable sortable"',
+            '! Output !! Ingredients !! data-sort-type="number" | Time']
+    for r in recs:
+        rows.append('|-')
+        rows.append(f"| {outputs(r['outputs'])} || {ingredients(r['inputs'])} "
+                    f"|| {fmt_time(r['craftTimeSeconds'])}")
+    rows.append('|}')
+    return '\n'.join(rows)
+
+def main():
+    data = json.load(open(SRC))['recipes']
+    order = sorted(data, key=lambda k: STATIONS.get(k, (k, 50))[1])
+    real = [k for k in order if STATIONS.get(k, ('', 50))[1] < 50]
+    total = sum(len(data[k]) for k in real)
+
+    out = []
+    out.append("Crafting in '''SAND''' is performed at workbenches placed on your walker. Each "
+               "workbench tier unlocks a set of recipes that turn salvaged resources into ammo, "
+               "weapons, armour and utility items.")
+    out.append('')
+    out.append(f"This page lists all {total} craftable recipes (plus developer test recipes), "
+               "extracted directly from the game files. Item names are the in-game (English) names.")
+    out.append('')
+    out.append('__TOC__')
+    out.append('')
+    out.append('== Workbenches ==')
+    out.append("Crafting compartments that can be placed on a walker (from the buildable "
+               "compartment database):")
+    out.append("* <code>walker_compCrafting_Open_1x1</code> — '''S&amp;H Armaments Workbench''' (1×1)")
+    out.append("* <code>walker_compCrafting_Small_Wood_1x1</code> — '''S&amp;H Compact Armaments Workshop''' (1×1)")
+    out.append("* <code>walker_compCrafting_Wood_2x1</code> — '''S&amp;H Armaments Workshop''' (1×2)")
+    out.append("There is also a '''KF Sewing Workshop''' (<code>walker_compCraftingUtility_Wood_2x1</code>) "
+               "associated with the utility/fabric recipes, but it is '''not''' in the buildable "
+               "compartment list in this build.")
+    out.append('')
+    out.append("'''Note:''' The recipe sets below come from the game's three recipe bundles "
+               "(<code>Recipes_Utility_Workbench_T1</code>, <code>Recipes_Armament_Workbench_T1/T2</code>). "
+               "Which workbench compartment loads which bundle is decided in game code at runtime and "
+               "is '''not''' stored in the asset data, so the exact compartment&rarr;recipe pairing "
+               "below is inferred from the bundle names and item types, not confirmed.")
+    out.append('')
+    out.append('== Recipes ==')
+    out.append(f'All {total} production recipes in a single sortable table. '
+               'Click a column header to sort (e.g. by station or craft time).')
+    out.append('')
+    out.append('{| class="wikitable sortable"')
+    out.append('! Station !! Output !! Ingredients !! data-sort-type="number" | Time')
+    for k in real:
+        station = STATION_SHORT.get(k, k)
+        for r in data[k]:
+            out.append('|-')
+            out.append(f"| {station} || {outputs(r['outputs'])} || {ingredients(r['inputs'])} "
+                       f"|| {fmt_time(r['craftTimeSeconds'])}")
+    out.append('|}')
+    out.append('')
+    out.append('== Notes ==')
+    out.append('* Recipes are extracted from the game\'s <code>CraftingRecipeBundle</code> assets; '
+               'item names are the in-game English names.')
+    out.append('* "Time" is the base crafting duration in seconds.')
+    out.append('* Developer/debug recipes are omitted.')
+    out.append('')
+    out.append('[[Category:Crafting]]')
+    text = '\n'.join(out)
+    os.makedirs(WIKI, exist_ok=True)
+    open(OUT, 'w').write(text)
+    print(f"wrote {OUT} ({len(text)} chars, {total} recipes in one table)")
+
+if __name__ == '__main__':
+    main()