feat: complete Python and Node.js bindings for all namespaces (#36)

* feat(python): add complete bindings for GeoRSS, Media RSS, Dublin Core, and Podcast 2.0

Phase 1: Python Bindings Implementation

New types:
- PyGeoLocation (geo_type, coordinates, srs_name)
- PyMediaThumbnail (url, width, height)
- PyMediaContent (url, type, filesize, width, height, duration)
- PyPodcastChapters (url, type)
- PyPodcastSoundbite (start_time, duration, title)
- PyPodcastEntryMeta (transcript, chapters, soundbite, person)

New Entry getters:
- geo, dc_creator, dc_date, dc_date_parsed, dc_rights, dc_subject
- media_thumbnails, media_content, podcast

New FeedMeta getters:
- geo

All types include __repr__ and __eq__ implementations.
Comprehensive test coverage with 23 new tests.

* feat(node): add type definitions for all namespaces

Phase 2: Node.js Type Definitions

New types (13 total):
- GeoLocation (geoType, coordinates, crs)
- MediaThumbnail (url, width, height)
- MediaContent (url, type, filesize, width, height, duration)
- ItunesFeedMeta (author, owner, categories, explicit, image, keywords, podcastType, complete, newFeedUrl)
- ItunesOwner (name, email)
- ItunesCategory (text, subcategory)
- PodcastMeta (transcripts, funding, persons, guid, value)
- PodcastFunding (url, message)
- PodcastEntryMeta (transcript, chapters, soundbite, person)
- PodcastChapters (url, type)
- PodcastSoundbite (startTime, duration, title)
- PodcastValue (type, method, suggested, recipients)
- PodcastValueRecipient (name, type, address, split, fee)

Security: SSRF warnings on all URL fields
Documentation: Enhanced with format examples and security notes

* feat(node): add field bindings and complete feature parity

Phase 3: Node.js Field Bindings

FeedMeta new fields:
- geo: Option<GeoLocation>
- itunes: Option<ItunesFeedMeta>
- podcast: Option<PodcastMeta>

Entry new fields:
- geo, dcCreator, dcDate, dcSubject, dcRights
- mediaThumbnails, mediaContent
- podcast: Option<PodcastEntryMeta>
- itunes: Option<ItunesEntryMeta>

Improvements:
- Added ItunesEntryMeta type (duration, episode, season, episodeType, etc.)
- Fixed camelCase naming for FeedMeta DC fields and SyndicationMeta
- Optimized entries Vec with capacity pre-allocation
- Added SSRF security notes to all URL fields
- Enhanced SyndicationMeta documentation

Tests: 24 new integration tests, 72 total passing

* style: apply rustfmt formatting

Author: bug-ops

crates/feedparser-rs-core/src/lib.rs

@@ -68,10 +68,10 @@ pub use options::ParseOptions;
 pub use parser::{detect_format, parse, parse_with_limits};
 pub use types::{
     Content, Enclosure, Entry, FeedMeta, FeedVersion, Generator, Image, ItunesCategory,
-    ItunesEntryMeta, ItunesFeedMeta, ItunesOwner, LimitedCollectionExt, Link, ParsedFeed, Person,
-    PodcastChapters, PodcastEntryMeta, PodcastFunding, PodcastMeta, PodcastPerson,
-    PodcastSoundbite, PodcastTranscript, PodcastValue, PodcastValueRecipient, Source, Tag,
-    TextConstruct, TextType, parse_duration, parse_explicit,
+    ItunesEntryMeta, ItunesFeedMeta, ItunesOwner, LimitedCollectionExt, Link, MediaContent,
+    MediaThumbnail, ParsedFeed, Person, PodcastChapters, PodcastEntryMeta, PodcastFunding,
+    PodcastMeta, PodcastPerson, PodcastSoundbite, PodcastTranscript, PodcastValue,
+    PodcastValueRecipient, Source, Tag, TextConstruct, TextType, parse_duration, parse_explicit,
 };
 
 pub use namespace::syndication::{SyndicationMeta, UpdatePeriod};