refactor: rename project uatu -> sanderling (#24)

* refactor: rename Go module path uatu -> sanderling

Module path github.com/priyanshujain/uatu -> github.com/priyanshujain/sanderling,
including all imports and the proto go_package option. Generated .pb.go files
rewritten in-place; safe to regenerate with protoc later.

* chore(proto): regenerate driverpb after module path rename

The previous sed-based module rename corrupted the embedded descriptor
byte lengths. buf generate rewrites them cleanly.

* refactor: rename CLI binary uatu -> sanderling

Updates Makefile target + UATU_BIN var, .goreleaser project/build IDs,
.gitignore comment, and all user-facing strings in the CLI help text,
error messages, and tests. Binary is now bin/sanderling.

* refactor(sdk): rename Kotlin package dev.uatu.sdk -> dev.sanderling.sdk

Moves sdk/android/src/{main,test}/kotlin/dev/uatu -> dev/sanderling and
rewrites package declarations, imports, and the Gradle namespace. Class
names (Uatu, UatuRuntime) are renamed in a follow-up commit.

* refactor(sidecar): rename Kotlin package dev.uatu.sidecar -> dev.sanderling.sidecar

Moves sidecar/src/{main,test}/kotlin/dev/uatu -> dev/sanderling and
rewrites package declarations, imports, and the application mainClass.

* refactor: rename Uatu API surface -> Sanderling

- Kotlin: Uatu -> Sanderling, UatuRuntime -> SanderlingRuntime (+ files).
- JS host binding: globalThis.__uatu__ -> __sanderling__ (Go verifier,
  spec-api, tests).
- TS interface: UatuRuntime -> SanderlingRuntime; internal tags
  __uatuFormula / __uatuActionGenerator -> __sanderling* variants.
- Go trace: UatuVersion field + uatu_version JSON tag renamed.
- Socket naming: uatu-agent / uatu-agent-reader -> sanderling-agent*.
- Sample app, docs, inline-JS test strings updated to match.

* refactor(examples): rename examples/folio/uatu -> examples/folio/sanderling

Renames the example spec directory; updates justfile paths + gitignore
entries accordingly. Package.json name/description and @uatu/spec
dependency are renamed in the npm + docs commits.

* chore(build): rename gradle property + rootProject.name uatu -> sanderling

- Renames the uatu.version gradle property and all its -P references in
  Makefile, build.gradle.kts files, and .github/workflows/release.yml.
- settings.gradle.kts rootProject.name = "sanderling".
- Renames .env.local.example header + release-cli workflow job name.

* refactor(proto): rename proto package uatu.driver.v1 -> sanderling.driver.v1

Updates the proto package and java_package, regenerates driver.pb.go +
driver_grpc.pb.go, rewrites Kotlin imports and the gRPC ServiceName
assertion in driver_test.go.

* refactor: rename npm package @uatu/spec -> @sanderling/spec

Renames package name in pkg/spec-api/package.json + lockfile, all
consumer imports (examples/folio spec, testdata, verifier tests), the
esbuild alias in cmd/sanderling/test_run.go, and related doc references.

* docs: rename uatu -> sanderling in README, docs, and URLs

- README + docs/{manual,development}/*: narrative + GitHub + Pages URLs.
- POM + npm package.json repo/homepage/bugs URLs.
- .gitignore + embed_stub + Makefile-comment references updated to
  'make sanderling'.
- Minor narrative comments in cmd/sanderling/test_run.go and
  internal/inspect/server.go.

* refactor: rename remaining internal uatu strings -> sanderling

- SANDERLING_TEST_PHONE/OTP env vars (cmd + bundler tests).
- sanderling-sidecar runtime tmp dir + extracted JAR filename.
- Inspect web UI: @sanderling/inspect-web package, title, theme
  localStorage key, RunList empty-state copy, uatu_version TS field.
- Sample app storage key sanderling.ledger.v1.
- Test data: sanderling_test AVD name + com.example.sanderling_test.
- Release docs tarball name template.

internal/verifier/bindings.go

@@ -80,11 +80,11 @@ type formulaSpec struct {
 }
 
 const (
-	tagFormula          = "__uatuFormula"
-	tagFormulaSpecIndex = "__uatuFormulaSpec"
-	tagActionGenerator  = "__uatuActionGenerator"
-	tagInternalKind     = "__uatuKind"
-	tagSelector         = "__uatuSelector"
+	tagFormula          = "__sanderlingFormula"
+	tagFormulaSpecIndex = "__sanderlingFormulaSpec"
+	tagActionGenerator  = "__sanderlingActionGenerator"
+	tagInternalKind     = "__sanderlingKind"
+	tagSelector         = "__sanderlingSelector"
 
 	internalKindActions         = "actions"
 	internalKindWeighted        = "weighted"
@@ -94,63 +94,63 @@ const (
 	internalKindBuiltinPressKey = "pressKey"
 )
 
-// installRuntimeBindings exposes globalThis.__uatu__ to the loaded spec.
+// installRuntimeBindings exposes globalThis.__sanderling__ to the loaded spec.
 func (v *Verifier) installRuntimeBindings() error {
-	uatu := v.runtime.NewObject()
+	sanderling := v.runtime.NewObject()
 
-	if err := uatu.Set("extract", v.bindExtract); err != nil {
+	if err := sanderling.Set("extract", v.bindExtract); err != nil {
 		return err
 	}
-	if err := uatu.Set("always", v.bindAlways); err != nil {
+	if err := sanderling.Set("always", v.bindAlways); err != nil {
 		return err
 	}
-	if err := uatu.Set("now", v.bindNow); err != nil {
+	if err := sanderling.Set("now", v.bindNow); err != nil {
 		return err
 	}
-	if err := uatu.Set("next", v.bindNext); err != nil {
+	if err := sanderling.Set("next", v.bindNext); err != nil {
 		return err
 	}
-	if err := uatu.Set("eventually", v.bindEventually); err != nil {
+	if err := sanderling.Set("eventually", v.bindEventually); err != nil {
 		return err
 	}
-	if err := uatu.Set("actions", v.bindActions); err != nil {
+	if err := sanderling.Set("actions", v.bindActions); err != nil {
 		return err
 	}
-	if err := uatu.Set("weighted", v.bindWeighted); err != nil {
+	if err := sanderling.Set("weighted", v.bindWeighted); err != nil {
 		return err
 	}
-	if err := uatu.Set("from", v.bindFrom); err != nil {
+	if err := sanderling.Set("from", v.bindFrom); err != nil {
 		return err
 	}
-	if err := uatu.Set("tap", v.bindTap); err != nil {
+	if err := sanderling.Set("tap", v.bindTap); err != nil {
 		return err
 	}
-	if err := uatu.Set("inputText", v.bindInputText); err != nil {
+	if err := sanderling.Set("inputText", v.bindInputText); err != nil {
 		return err
 	}
-	if err := uatu.Set("swipe", v.bindSwipe); err != nil {
+	if err := sanderling.Set("swipe", v.bindSwipe); err != nil {
 		return err
 	}
-	if err := uatu.Set("pressKey", v.bindPressKey); err != nil {
+	if err := sanderling.Set("pressKey", v.bindPressKey); err != nil {
 		return err
 	}
-	if err := uatu.Set("wait", v.bindWait); err != nil {
+	if err := sanderling.Set("wait", v.bindWait); err != nil {
 		return err
 	}
-	if err := uatu.Set("taps", v.builtinGenerator(internalKindBuiltinTaps)); err != nil {
+	if err := sanderling.Set("taps", v.builtinGenerator(internalKindBuiltinTaps)); err != nil {
 		return err
 	}
-	if err := uatu.Set("swipes", v.builtinGenerator(internalKindBuiltinSwipes)); err != nil {
+	if err := sanderling.Set("swipes", v.builtinGenerator(internalKindBuiltinSwipes)); err != nil {
 		return err
 	}
-	if err := uatu.Set("waitOnce", v.builtinGenerator(internalKindBuiltinWaitOnce)); err != nil {
+	if err := sanderling.Set("waitOnce", v.builtinGenerator(internalKindBuiltinWaitOnce)); err != nil {
 		return err
 	}
-	if err := uatu.Set("pressKeys", v.builtinGenerator(internalKindBuiltinPressKey)); err != nil {
+	if err := sanderling.Set("pressKeys", v.builtinGenerator(internalKindBuiltinPressKey)); err != nil {
 		return err
 	}
 
-	return v.runtime.GlobalObject().Set("__uatu__", uatu)
+	return v.runtime.GlobalObject().Set("__sanderling__", sanderling)
 }
 
 func (v *Verifier) bindExtract(call goja.FunctionCall) goja.Value {
@@ -172,7 +172,7 @@ func (v *Verifier) bindExtract(call goja.FunctionCall) goja.Value {
 
 // bindAlways accepts either a predicate function (legacy shape) or a formula
 // handle (new shape). Both produce a formula handle tagged with
-// __uatuFormulaSpec.
+// __sanderlingFormulaSpec.
 func (v *Verifier) bindAlways(call goja.FunctionCall) goja.Value {
 	if len(call.Arguments) != 1 {
 		panic(v.runtime.NewTypeError("always requires exactly one argument"))
@@ -258,9 +258,9 @@ func (v *Verifier) formulaHandle(kind specKind, index int) *goja.Object {
 	handle := v.runtime.NewObject()
 	_ = handle.Set(tagFormula, true)
 	_ = handle.Set(tagFormulaSpecIndex, index)
-	// Keep __uatuIndex as an alias so older property shapes that read it keep
+	// Keep __sanderlingIndex as an alias so older property shapes that read it keep
 	// working during backward-compat transitions.
-	_ = handle.Set("__uatuIndex", index)
+	_ = handle.Set("__sanderlingIndex", index)
 
 	_ = handle.Set("implies", v.binaryChain(index, specKindImplies))
 	_ = handle.Set("or", v.binaryChain(index, specKindOr))
@@ -326,7 +326,7 @@ func (v *Verifier) eventuallyWithin(selfIndex int) func(call goja.FunctionCall)
 	}
 }
 
-// extractSpecIndex reads __uatuFormulaSpec from a JS formula handle.
+// extractSpecIndex reads __sanderlingFormulaSpec from a JS formula handle.
 func (v *Verifier) extractSpecIndex(value goja.Value) (int, bool) {
 	if value == nil || goja.IsNull(value) || goja.IsUndefined(value) {
 		return 0, false