chore: bump Motoko to v1.11.0 (#308)

## Summary

Automated bump of `.sources/motoko` from `v1.10.1` to `v1.11.0`.

- Ran `npm run sync:motoko` — synced docs from the new release
- Build passed ✓

## Checklist

- [ ] Review synced content for breaking changes
- [ ] Check [release
notes](https://github.com/caffeinelabs/motoko/releases/tag/1.11.0) for
API or syntax changes that affect hand-written docs
- [ ] Verify any new sections or renamed files are handled correctly

## Sync recommendation

`sync from caffeinelabs/motoko doc/md`

Co-authored-by: pr-automation-bot-public[bot] <pr-automation-bot-public[bot]@users.noreply.github.com>

Author: pr-automation-bot-public[bot]

.sources/VERSIONS

@@ -57,7 +57,7 @@ chain-fusion-signer   v0.4.0
 papi                  v0.1.1                                                    168bc9d
 ic-pub-key            v1.0.1                                                    f89fa55
 icp-cli               v1.0.0                                                    9eed60c
-motoko                v1.10.1                                                     46e0755
+motoko                v1.11.0                                                     c3a6eb3
 motoko-core           v2.4.0                                                    cd37dbf
 cdk-rs                ic-cdk v0.20.1 / ic-cdk-timers v1.0.0 / ic-cdk-executor v2.0.0  317f55c
 candid                2025-12-18  # candid v0.10.20, didc v0.5.4                2e4a2cf

.sources/motoko

@@ -8,6 +8,22 @@ sidebar:
 
 # Motoko compiler changelog
 
+## 1.11.0 (2026-06-29)
+
+* motoko (`moc`)
+
+  * feat: `moc` now emits the standardized `target_features` Wasm custom section, so `binaryen`-based tools (`wasm-opt`, `ic-wasm optimize`, `dfx`'s `optimize`) accept and optimize Motoko output without per-tool feature flags. Previously these tools defaulted to MVP and rejected the `multivalue`/`bulk-memory`/`memory64` features moc relies on (#6214).
+
+  * feat: a `Float32` literal written with more precision than the type can hold now warns (M0266), suggesting the shortest equivalent: e.g. `0.123456789 : Float32` → `0.12345679`. The surplus digits were already silently discarded by rounding; the warning fires only on genuine excess (minimal literals like `0.1`/`3.14` stay quiet) (#6198).
+
+  * feat: allow requiring `system` capability for `mixin` definitions (#6211).
+    This makes the capability available in initializers and the `mixin` body.
+    `<system>` then needs to appear on the corresponding `include`.
+
+  * feat: allow effectful code in transient `let`s and in `actor`/`mixin` bodies with `--enhanced-migration` (#6191).
+
+  * bugfix: `--enhanced-migration` now also applies to `mixin`s and considers their stable fields when checking migrations (#6183).
+
 ## 1.10.1 (2026-06-24)
 
 * motoko (`moc`)