update 26.3 dependencies and pack mods

- polymer 0.18.0+26.3-rc-1 -> 0.18.2+26.3 (first 26.3 final build)
- fabric-api 0.160.5 -> 0.161.0, loom 1.18.1 -> 1.18.2
- pack: move squaremap, syncmatica, farmers-delight (+polymer patch),
  jei, worldedit, lithium to their 26.3 builds; bump fabric-api, polymer
- lithium now resolved from Modrinth instead of CurseForge (same mod, same author)
- docs: fix stale hurtMarked reference, drop carpet snapshot warning

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

server-deploy/pack/mods/squaremap.pw.toml

@@ -1,13 +1,13 @@
 name = "squaremap"
-filename = "squaremap-fabric-mc26.2-1.3.14.jar"
+filename = "squaremap-fabric-mc26.3-1.4.0.jar"
 side = "both"
 
 [download]
-url = "https://cdn.modrinth.com/data/PFb7ZqK6/versions/VbqnAdLU/squaremap-fabric-mc26.2-1.3.14.jar"
+url = "https://cdn.modrinth.com/data/PFb7ZqK6/versions/FJzk5i6o/squaremap-fabric-mc26.3-1.4.0.jar"
 hash-format = "sha512"
-hash = "db0345134c109ccd2bc7fe67ae35dc561655ff25a14a42525d655012696bd10eaa999431b50a84335cc5960ec12ff5d34dddb75ee11bcf36252ac89cff86e71f"
+hash = "c7ccc0a8f663def6c655832f92d0cfea0fc26c5e7cbfcb88ce1fe787c38296b50f5a9665eaa17fa8e4b634f2151819d55b6aca1ee2eb92f59c8378020cecba09"
 
 [update]
 [update.modrinth]
 mod-id = "PFb7ZqK6"
-version = "VbqnAdLU"
+version = "FJzk5i6o"