Use single YAML file in provision.sh

[javuto]

Following up #754 to utilize the single YAML configuration file in the provision.sh deployment script

[Copilot]

Pull request overview

This PR migrates the deployment provisioning script from using multiple JSON configuration files to a single YAML configuration file per service. The changes involve updating data types for port numbers from strings to integers across the codebase and modifying the deployment scripts to use yq for YAML manipulation instead of sed for JSON template substitution.

• Updates port-related configuration fields from string to int type throughout the codebase
• Replaces JSON configuration templates with YAML files and updates deployment scripts accordingly
• Updates PostgreSQL and Go version references in provision script

Reviewed changes

Copilot reviewed 15 out of 15 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
tls.yml	New YAML configuration file for osctrl-tls service with all service parameters
pkg/settings/settings.go	Converts port integers to strings when storing in JSON settings
pkg/config/types.go	Changes Port fields from string to int in YAML configuration structs
pkg/config/flags.go	Updates CLI flags to use IntFlag instead of StringFlag for port parameters
deploy/provision.sh	Refactors to use single YAML config file and yq tool; updates PostgreSQL/Go versions
deploy/lib.sh	Simplifies configuration functions to use yq for direct YAML manipulation
deploy/config/service.json	Removes JSON template file
deploy/config/redis.json	Removes JSON template file
deploy/config/jwt.json	Removes JSON template file
deploy/config/db.json	Removes JSON template file
cmd/tls/main.go	Updates port concatenation to use strconv.Itoa for integer conversion
cmd/cli/main.go	Changes db-port flag from StringFlag to IntFlag
cmd/api/main.go	Updates service listener to use integer port with strconv.Itoa
cmd/admin/main.go	Updates service listener to use integer port with strconv.Itoa
cmd/admin/handlers/utils.go	Adds string-to-int conversion for port values from settings

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