Glia iOS Core SDK 4.0.1

• Increment project version to 4.0.1
• Bump activesupport from 8.1.3.1 to 8.1.4.1
• chore: bump PhoenixChannelsClient to 1.3.2
• Rename the MediaKit class so it stops shadowing its module
• Drop the manifest declarations the rebase re-added
• Check for Twilio updates against the Swift Package pins
• Finish the CocoaPods removal in the manifests and project files
• Bump GliaOpenTelemetry to 1.1.1
• Lint with the CI image's SwiftLint instead of failing on its version
• Make the source package build and keep MediaKit out of the interface
• Share binary dependencies between MediaKit and Core
• Resolve dependencies with Swift Package Manager
• Stop negotiating WebRTC audio in Medra
• Add MediaKit audio conference provider skeleton
• Extract backend mute notification into AudioMuteNotifier
• Deliver Twilio call callbacks to the call in order
• Ship MediaKit inside CoreSDK builds
• Add explicit conference route to Twilio Voice configuration
• Read ICE servers only after MediaKit registration
• Wait 1s for an engagement once the setup socket opens
• Bump fastlane from 2.241.1 to 2.241.2 in /GliaCoreSDK
• Keep Twilio error text out of disconnect reasons
• Hang up active calls when MediaKit shuts down
• Retry the WCC channel join on timeout
• Reconnect the interaction reader on app foreground
• Reconnect the WCC socket on app foreground
• Interfaces milestone 2 (#1509)
• Add MediaKit audio session builder and provider (#1748)
• Add provider-neutral audio contracts and MediaKit call adapter (#1752)
• Add MediaKit auth-ticket client (#1751)
• Add MediaKit audio provider mode and identity resolvers (#1750)
• Share one WebRTC peer connection factory per SDK lifetime (#1749)
• Resolve participant action success from interaction state
• Log device connectivity socket failures as warnings
• Reuse a pending secure conversation start when the visitor sends again
• Count an accepted file entry as sent and retry transient failures
• Count an accepted live chat message as sent
• Retry a failed message entry under its idempotency key
• Resend the clear's queue and engagement clean-up once
• Send the clear's requests to targets captured up front
• Keep the network error behind request failures
• Close live observation's connection on disconnect
• Move the outgoing visitor's clean-up to its own file
• Share one visitor resolution between concurrent callers
• Forget the visitor at once when clearing the session
• Remove the Service Credential key from the configuration
• Fetch site info once and retry transient failures
• Create visitors and fetch site info without the site key
• Flush previous telemetry off the calling thread
• Retry a failed survey answers submit
• Retry only failures a later attempt can answer differently
• Share the backoff retrier outside the web chat connector
• Remove the Glia Review workflow
• Violation cleanup for unpinned GitHub actions and workflows running on default permissions