fix(line): classify SDK errors with HTTP status and add client timeout

Address review feedback:
- Use *WithHttpInfo SDK variants to get HTTP response status codes
- Map status codes via ClassifySendError (429→ErrRateLimit, 5xx→ErrTemporary, 4xx→ErrSendFailed)
- Fall back to ClassifyNetError for network-level failures
- Configure SDK with 30s timeout HTTP client

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

go.mod

@@ -4,26 +4,24 @@ go 1.25.9
 
 require (
 	fyne.io/systray v1.12.0
-	github.com/BurntSushi/toml v1.6.0
 	github.com/SevereCloud/vksdk/v3 v3.3.1
 	github.com/adhocore/gronx v1.19.6
 	github.com/anthropics/anthropic-sdk-go v1.26.0
 	github.com/atc0005/go-teams-notify/v2 v2.14.0
-	github.com/aws/aws-sdk-go-v2 v1.41.6
-	github.com/aws/aws-sdk-go-v2/config v1.32.16
-	github.com/aws/aws-sdk-go-v2/service/bedrockruntime v1.50.5
+	github.com/aws/aws-sdk-go-v2 v1.41.7
+	github.com/aws/aws-sdk-go-v2/config v1.32.17
+	github.com/aws/aws-sdk-go-v2/service/bedrockruntime v1.50.6
 	github.com/bwmarrin/discordgo v0.29.0
 	github.com/caarlos0/env/v11 v11.4.0
 	github.com/charmbracelet/lipgloss v1.1.0
 	github.com/creack/pty v1.1.24
 	github.com/ergochat/irc-go v0.6.0
 	github.com/ergochat/readline v0.1.3
-	github.com/gdamore/tcell/v2 v2.13.8
 	github.com/gomarkdown/markdown v0.0.0-20260411013819-759bbc3e3207
 	github.com/google/uuid v1.6.0
 	github.com/gorilla/websocket v1.5.3
 	github.com/h2non/filetype v1.1.3
-	github.com/larksuite/oapi-sdk-go/v3 v3.5.4
+	github.com/larksuite/oapi-sdk-go/v3 v3.6.1
 	github.com/line/line-bot-sdk-go/v8 v8.19.0
 	github.com/mdp/qrterminal/v3 v3.2.1
 	github.com/minio/selfupdate v0.6.0
@@ -34,7 +32,6 @@ require (
 	github.com/openai/openai-go/v3 v3.22.0
 	github.com/pion/rtp v1.10.1
 	github.com/pion/webrtc/v3 v3.3.6
-	github.com/rivo/tview v0.42.0
 	github.com/rs/zerolog v1.35.1
 	github.com/slack-go/slack v0.17.3
 	github.com/spf13/cobra v1.10.2
@@ -56,19 +53,19 @@ require (
 require (
 	aead.dev/minisign v0.2.0 // indirect
 	filippo.io/edwards25519 v1.2.0 // indirect
-	github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.7.9 // indirect
-	github.com/aws/aws-sdk-go-v2/credentials v1.19.15 // indirect
-	github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.18.22 // indirect
-	github.com/aws/aws-sdk-go-v2/internal/configsources v1.4.22 // indirect
-	github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.7.22 // indirect
-	github.com/aws/aws-sdk-go-v2/internal/v4a v1.4.23 // indirect
-	github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.13.8 // indirect
-	github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.13.22 // indirect
-	github.com/aws/aws-sdk-go-v2/service/signin v1.0.10 // indirect
-	github.com/aws/aws-sdk-go-v2/service/sso v1.30.16 // indirect
-	github.com/aws/aws-sdk-go-v2/service/ssooidc v1.35.20 // indirect
-	github.com/aws/aws-sdk-go-v2/service/sts v1.42.0 // indirect
-	github.com/aws/smithy-go v1.25.0 // indirect
+	github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.7.10 // indirect
+	github.com/aws/aws-sdk-go-v2/credentials v1.19.16 // indirect
+	github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.18.23 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/configsources v1.4.23 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.7.23 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/v4a v1.4.24 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.13.9 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.13.23 // indirect
+	github.com/aws/aws-sdk-go-v2/service/signin v1.0.11 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sso v1.30.17 // indirect
+	github.com/aws/aws-sdk-go-v2/service/ssooidc v1.35.21 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sts v1.42.1 // indirect
+	github.com/aws/smithy-go v1.25.1 // indirect
 	github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect
 	github.com/beeper/argo-go v1.1.2 // indirect
 	github.com/charmbracelet/colorprofile v0.2.3-0.20250311203215-f60798e515dc // indirect
@@ -80,7 +77,6 @@ require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
 	github.com/elliotchance/orderedmap/v3 v3.1.0 // indirect
-	github.com/gdamore/encoding v1.0.1 // indirect
 	github.com/go-logr/logr v1.4.3 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/godbus/dbus/v5 v5.1.0 // indirect