fix: rename seed files and IDs to match cleaned titles

All 100 seed YAML files now have:
- Filenames that match their id field
- IDs that are slugs of their titles
- No cultural identifiers in titles or IDs

70 files renamed. e.g. quaker-meeting-for-worship.yaml -> meeting-for-worship.yaml,
moroccan-jmaa-village.yaml -> jmaa-village-assembly.yaml,
japanese-hansei.yaml -> hansei-reflection.yaml

seeds/shellmound-walk-of-remembrance.yaml

@@ -0,0 +1,42 @@
+id: shellmound-walk-of-remembrance
+title: Shellmound Walk of Remembrance
+description: >-
+  A California Native Ohlone practice of walking to and gathering at
+  shellmound sites — sacred burial and village sites — to remember the
+  ancestors and affirm ongoing presence. Many shellmounds in the Bay Area
+  have been built over; the walk reclaims relationship with the land.
+source: Ohlone and Muwekma Ohlone tradition
+source_url: https://www.muwekma.org/
+tags: [ohlone, california-native, remembrance, land, indigenous]
+forked_from: null
+image: null
+steps:
+  - headline: Gather at a starting point
+    description: >-
+      Ohlone community members and allies gather at a starting point, often
+      a site where a shellmound once stood or has been built over. An elder
+      opens with prayer.
+  - headline: Walk to the shellmound
+    description: >-
+      The group walks together to the shellmound site, in silence or with
+      prayer, marking the land with their presence and movement.
+  - headline: Gather and remember
+    description: >-
+      At the shellmound, the group gathers. Speakers share the history of
+      the site, the ancestors buried there, and the ongoing Ohlone
+      presence that has not been erased.
+  - headline: Offer prayer and song
+    description: >-
+      The group offers prayer and song to the ancestors and the land. The
+      offering is made as relationship, not performance.
+  - headline: Commit to protection
+    description: >-
+      The gathering closes with a commitment to protect the site and the
+      Ohlone's ongoing relationship to it, often with specific actions
+      named.
+outcome: >-
+  A shellmound site is remembered and honoured; Ohlone presence is
+  affirmed; commitments to protection are made.
+practice: >-
+  The walk is not symbolic tourism. It is reclamation of relationship. If
+  you are not Ohlone, follow Ohlone lead and do not centre yourself.