Add optional whitelist/blacklist for talkgroups on RDIO upload plugin…

[TheGreatCodeholio]

This PR updates the Rdio Scanner uploader plugin with (1) per-system talkgroup
allow/deny filtering using glob-style patterns, and (2) targeted libcurl
robustness + observability fixes (timeouts, better error reporting, and more
correct status/result handling). Existing configs continue to work unchanged.

Rdio Scanner Plugin (rdioscanner_uploader) — Changes in this PR

===============================================================================

1. Per-system talkgroup filtering (new allow/deny keys + glob patterns)

---

Added two optional keys on each Rdio “system” object:

• talkgroupAllow (array)
  If provided and non-empty, the talkgroup MUST match at least one pattern
  to upload. If it doesn’t match, the call is skipped.

• talkgroupDeny (array)
  If provided and non-empty, any matching talkgroup is skipped.

Patterns are glob-style and compiled to fully-anchored regex (^...$):

• • matches any number of characters
• ? matches exactly one character

Filter evaluation order:

1. allow check (if present)
2. deny check (if present)

Additional notes:

• Matching is performed against the numeric talkgroup ID coerced to a string
  (e.g., 50712), so pattern lists can contain strings or numbers.
• When a call is skipped due to filters, we log an info message that includes
  the talkgroup ID for easy debugging.

2. libcurl robustness / observability / correctness improvements

---

The upload path now includes these changes:

Observability:

• Adds CURLOPT_ERRORBUFFER and includes curl_err=... in error logs when present.
• Error logs now include HTTP status code in the message context.

Thread-safety / stability:

• Sets CURLOPT_NOSIGNAL=1 to avoid signal-related issues in threaded usage.

Timeouts:

• Sets CURLOPT_CONNECTTIMEOUT_MS (e.g., 15000ms).
• Sets CURLOPT_TIMEOUT_MS (e.g., 120000ms).

Correctness fixes in multi + HTTP handling:

• Extracts the per-transfer CURLcode from curl_multi_info_read() so we can tell
  whether the transfer itself failed vs. a non-2xx HTTP response.
• Captures CURLINFO_RESPONSE_CODE BEFORE cleaning up the easy handle
  (the old flow attempted to read it after cleanup).

Success criteria expanded:

• Treats any successful HTTP status as success via is_success_http_status(...),
  and explicitly supports 202 Accepted (logs “Accepted (202) - stub cached” vs.
  “Success” for other success statuses).

Safer lifetime for mime string inputs:

• Uses explicit std::string variables for fields passed into curl_mime_data()
  (audioType/dateTime/system/talkgroup/etc.) so the backing memory is guaranteed
  to remain valid until after the request completes.

Net effect

• Adds per-system talkgroup allow/deny filtering with glob patterns.
• Makes uploads more reliable (timeouts + NOSIGNAL), fixes status handling, and
  improves diagnostics (curl error buffer + clearer error/success logging).

[Dygear]

Clean! Nice!

[TheGreatCodeholio]

54% less racist

now uses talkgroupAllow and talkgroupDeny for config names.

updateed original request note with Ai Slop, because I didn't want to type out all the changes I made with curl.

[robotastic]

@Dygear - were you able to give the code a run? @TheGreatCodeholio - Thanks for including changes to the docs too!!