chore: refresh dependencies, fix Linux tool tasks, modernize Go idioms

Frontend deps: @hookform/resolvers 5.4.0 -> 5.4.3 and react-hook-form
7.82.0 -> 7.83.0. The @typeschema/valibot override is what makes this
installable at all. Resolvers 5.4.3 re-declares 25 optional peers for its
validator matrix, and npm resolves them into the ideal tree even though none
are used here; two of them contradict, since resolvers wants valibot ^1 while
@typeschema/main -> @typeschema/valibot pins valibot ^0.39. Both target the
same node_modules/valibot, so a plain npm update dies with ERESOLVE. The
override settles that one edge and nothing extra lands in node_modules.

Backend deps: telego 1.10.0 -> 1.11.1 (Telegram Bot API v10.2, additive
only), klauspost/compress 1.19.1, plus the indirect bumps that came with them.

VS Code tasks: the golangci-lint and modernize tasks assumed Windows PATH
semantics, where PATH is a persistent user variable that every process
inherits, so ~/go/bin was always visible. On Linux that directory is exported
from ~/.bashrc, which the non-interactive `bash -c` behind a task never
sources, and both tasks failed with exit 127. Adds linux/osx option blocks
that prepend the Go bin directories and leaves the Windows path untouched,
plus tasks to install the two tools; those are split because go install
rejects packages from different modules in one invocation.

Go sources: modernize -fix output, covering range-over-int, slices.Backward,
maps.Copy, strings.CutPrefix and strings.SplitSeq. Behaviour is unchanged.

internal/util/link/outbound.go

@@ -8,6 +8,7 @@ import (
 	"encoding/base64"
 	"encoding/json"
 	"fmt"
+	"maps"
 	"math"
 	"net/url"
 	"regexp"
@@ -627,9 +628,7 @@ func applyTransport(stream map[string]any, p url.Values) {
 		if extra := p.Get("extra"); extra != "" {
 			var parsed map[string]any
 			if err := json.Unmarshal([]byte(extra), &parsed); err == nil {
-				for k, v := range parsed {
-					xh[k] = v
-				}
+				maps.Copy(xh, parsed)
 			}
 		}
 		for _, k := range []string{"xPaddingBytes", "scMaxEachPostBytes", "scMinPostsIntervalMs", "uplinkChunkSize"} {